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http://www.steelbuildingsource.com/Steel-Buildings.html">Steel Buildings</a>
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www.caststoneco.com
Link to installer:
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Cast stone online database:
www.caststoneonline.com
Cast Stone Architect Links:
www.caststonelinks.com
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www.venturaprecast.com
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About Ventura
Cast Stone
Cast stone
We at
Ventura cast stone are pleased to introduce this lightweight GFRC cast stone or lightweight precast concrete if you will, into our line of precast concrete and cast stone. Because lightweight cast stone is made from fiberglass
strand mixed with real limestone which gives it that stone look, it is suitable for fireplace mantle treatments.
Lightweight precast concrete
Lightweight precast concrete is usually called GFRC or glass fiber reinforced concrete, and is manufactured by Ventura cast stone and
installed in the Los Angeles, Ventura and Santa Barbara Counties. Precast concrete usually weights 100 lbs per cubic foot. Gfrc usually weights 10 lbs per lin foot. Precast concrete is a lower end product
and does not simulate limestone as does cast stone. Precast concrete resembles finished concrete and the surface looks like your garage floor. Cast stone resembles limestone or sandstone. Lightweight
GFRC precast concrete is not a new
product but has been used for years, but not in architectural uses.
Our Cast Stone range of products are into two product types:
Dry Cast
The "Dry Cast" method is a two part process, a face material to give
you the similar finish to natural stone. Mechanically compacted to the
rear of this is the backing mix to give the units strength in the terms
of handling ability
Dry cast units are immediately demoulded after casting and are hand
finished to a very high standard.
Wet Cast
Wet Cast as the name suggests produces structural products like heads
and sills but is also used for slabs, beams and other similar products,
that are for high exposure or structural situations where greater loads
are required on the finished unit. The Wet Cast also has the added
advantage of specialist finishes with the use of special sand
aggregates, a massive spectrum of colors can be achieved.
Introduction to Cast Stone (wet cast and dry cast)
Cast Stone is known by a variety of
other names including art stone, reconstructed stone, reconstituted
stone, artificial stone and manufactured stone. This defines cast
stone as any material manufactured with aggregate and cementicious
binder and intended to resemble in appearance, and be used in a similar
way to, natural stone. Cast stone is either homogenous through out or
consists of a facing material and backing concrete.
The method of production is split into two categories.
| Semidry mixes |
| Precast concrete or sometimes referred to as 'wet' cast. |
Choice of manufacturing method
The majority of cast stone manufactures use the semi-dry method of
production. And is the more commonly widely used method of manufacture.
Early consultation with us is advisable to ascertain the correct method
of production for your project.
Sizes: Components produced using the semidry
method are limited in size with face dimensions of Ashlar units normally
no greater than 1200x600mm. This is mainly because of the fact a semi
dry mix is used, which require rapid and rigorous compaction with hand
held pneumatic tampers. The semidry method of production is best suited
to traditionally sized ashlars quoins, sills, copings, door and window
surrounds, etc.
Structural requirements: Components requiring
reinforcement which is more complex than a few straight bars or a layer
of fabric reinforcement, must be produced using the wet cast method of
production. This is because it is difficult to achieve thorough
compaction of semidry mixes around congested reinforcement.
Appearance: Cast stone can replicate a variety
of stone colors and finishes. The semidry method of production is used
to simulate limestones and sandstones. Where a component has a
particularly intricate pattern or profile including slender projections,
precast concrete may have to be used in preference to the 'semidry'
method. Good color matching between components can be achieved by both
methods, although textural differences become apparent at close range.
Economics: Rapid production rates with frequent
reuse of moulds are possible with cast stone produced using semidry
mixes. Where as with the Wet Cast process a higher number of concrete molds is
required to achieve the same casting program, but careful thought a
planning stages of the contract can minimize the number of concrete molds. In
Fact an additional 2-3 weeks extra lead-time for standard or semi
standard products can sometimes be all that is needed to achieve the
same casting program.
Comparison between the semidry and wet methods
The production of cast stone using semidry mixes differs from that of
wet method in several ways.
Casting
Semi Dry ~ De-molding takes place immediately after compaction. This
allows a rapid casting cycle with e.g. up to 100 or more basic
components (sills, copings, etc.) a day from a single mould.
Wet Cast ~ Where as to manufacture the equivalent in wet cast it
would not only take longer but you would require 1 mould per cast per
day i.e. to produce 100 units a day you would need 100 moulds.
Semi Dry ~Compaction is carried out by pneumatic tampers rather than
by vibration.
Wet Cast ~ Compaction is carried out by vibration.
Mixes
Semi Dry ~ *Separate facing and backing mixes are often used for
components like ashlars, sills, heads and jambs, where the backing mix
is concealed from view. Separate facing and backing mixes are used
primarily to economize on the facing mix. BS1 217 requires a separate
facing mix to be not less than 20 mm thick at any point, with semidry
cement sand facing mixes and concrete backing mixes each mix is placed
and compacted in immediate succession to ensure that they are
effectively monolithic.
Wet Cast ~ Wet Cast units are manufactured from a through colored
homogenous mix.
Semi Dry ~ Water repellent admixtures are invariably used in facing
mixes to reduce permeability. Giving a water absorption of Grade B. All
constituents are accurately weigh batched with the moisture content
monitored regularly. Mix batches are necessarily small to prevent any
premature drying of the mix. Thorough mixing and compaction are critical
to ensure that the cast stone achieves the required density (typically
between 1850-2100kg/m2), compressive strength and permeability.
Wet Cast ~ superplasticisers and accelerators are used to ensure good
flow of the mix during vibration and compaction to achieve a smooth,
compact and blow hole free finish (where ever possible finish smooth
after dressing) also to give good early strength. Typical cube tests at
7-10 Days are that of the equivalent of that of a semi dry unit at 28
Days
Products are split into three categories.
Standard - Cast stone items that are
manufactured in accordance with our Technical specification sheets.
These items could be stock items or units, which are ready to cast at
the first available production slot, with no moulds to produce. Products
like standard head, sills or pier caps and copings. The cost of
establishing the moulds is not same, thus for small production runs
costs can be kept to the minimum. Also not forgetting lead times can be
much shorter by not having to detail, obtain approval and then construct
moulds.
Semi Standard - Cast stone items, which are
similar to details within our Technical specification sheets. But say
vary in length or require slight mould adaptation or modification.
Purpose Made - Cast Stone items which are
manufactured in accordance with the contract documents. These units are
made from new purpose made concrete molds. These would probably be
specialized units, which are not contained in our brochure. We have our
own in house design department, who will assist you in the process of
your design advising you in Careful thought must be given in the
planning process for purpose made products. Please consider the
following.
| Design and detailing of in house production drawings- Some times
it is of necessity to produce working drawings of Architects details
to enable production of moulds.
This process can some times take any thing from 2 10 days,
dependant on how long it takes to get details approved.
|
| Approval of production drawings.
|
| Production of Patterns- Sometimes it is necessary to produce units
from G.R.P. or Rubber moulds.
|
| This may involve the pattern being produced and before moulds are
manufactured, approval of the pattern may be sort from the Architect
or Client.
|
| Approval of production patterns
|
| Manufacture of concrete molds
|
| Production of Units
|
| Curing of units
|
| Packaging and Transportation to Site
|
Remember adequate time must be allowed for production of concrete
molds.
Colors and Finishes
Natural stone colors are achieved either by reliance on the color of
crushed rock and sands and aggregates or by the addition of pigments.
White cement gray cement and a combination are often used. The use of
pigments can give the cast stone greater scope in the selection of
suitably graded aggregates, which permit good compaction and achieve a
strong, dense mix. Iron oxides based pigments are normally used in small
quantities (e.g. 0.2%-1% yellow iron oxide by weight of cement for
yellow sandstone's and up to 5% red iron oxide for red sandstone). High
proportions of pigment powder (above say 6 - 8% by weight of cement) are
used sometimes to achieve unusual colors like blues and browns but
generally these should be avoided.
A variety of traditional ashlar finishes can be replicated with cast
stone, including plain, boasted, tooled, rockfaced, vermiculated. The
other ashlar finishes are normally produced from latex:sand or concrete mold
liners.
| Semi Dry ~ Plain finishes normally produced using sealed plywood
mould liners or, where the shape, detail or longevity for mould
dictates, fiberglass is used. |
| Wet Cast ~ unlike the semidry method, the wet cast mix produces a
surface laitance which has to be removed after demoulding to reveal
the color and texture of the fines layer. The laitance is removed by
either acid etching or retarding the surface within the mould prior to
curing and washing off after demolding to achieve a smaller large
expose of aggregate. |
Here is where specialist aggregates can be used to achieve some
wonderful and varied finishes and colors.
Structural Use
Dependant on the situation all cast stone both Wet and Dry Cast can
be used. But there are limitations in the Dry Cast process as opposed to
Wet Cast: -
| Semi Dry ~ Components requiring reinforcement which is more
complex than a few straight bars or a layer of fabric reinforcement
are not possible. This is because it is difficult to achieve thorough
compaction of semidry mixes using a pneumatic tamper in and around the
congested reinforcement. Therefore Wet Cast is the option.
|
| Wet Cast ~ unlike the semidry method, the Wet Cast mix is poured
into the mould as thick liquid mix and compaction is achieved by
vibration. So even the more complex arrangement of bars can be
compacted sufficiently. The added advantage being the need to put any
secondary support like pressed or fabricated steel lintel saving
costs. Also we can manufacture structural beams for larger vehicle
entranceways for example. |
Cast Stone
Cast stone by
Ventura Cast Stone installed in California city's such as
Los Angeles, Beverly Hills, Bel Air, Ventura or Santa Barbara has to be
mechanically fastened to the wood frame of a building usually with
stainless steel or galvanized attachments, this because of earthquake
codes. There are many historical buildings in California with cast
stone as part of their facade. Cast stone in
Los Angeles, Beverly hills, Bel Air, Ventura and Santa Barbara was at it's
most popular in the 1900's. In Santa Barbara, cast stone was used
extensively in the downtown district and also in a primitive form at the
Santa Barbara mission in the form of adobe, a mixture of mud and straw or horsehair
mixed with water and hand shaped into molds. Cast stone in the City
of Ventura was used mainly on churches in the downtown area. Cast
stone in Los Angeles was used in many important buildings including the
famous Los Angeles City hall. In Santa Barbara cast stone and Santa
Barbara stone were used in conjunction in many historical buildings.
Santa Barbara stone also called Santa Barbara sandstone, is found mainly
in Santa Barbara county, is removed from the ground in loose form, the
Santa Barbara stone is then cut and shaped by a stonemason into useable
blocks. Cast stone in Beverly Hills was used in the Beverly Hills
City hall and is now used on many residential buildings.
We also supply and install granite and CDI precast caststone and concrete design product, CDI columns,
Sierra stone caststone columns and balustrade, California precast
products, CDI precast, CDI precast granite moldings and stairs. We also supply and install CDI precast
granite concrete
window and door trim, CDI GFRC columns, Sierra stone products, concrete design, full weight
precast
and granite or limestone products, California precast columns, CDI precast pool coping, CDI precast
or limestone moldings
and CDI fireplace mantles. We manufacture our own concrete molds.
Precast concrete
Precast concrete is
usually used in lower end track homes where budget is a concern, cast
stone is usually used in higher end homes where budget is not a major
concern. The difference between
cast stone and precast concrete is easily seen, and even the novice can
appreciate the high quality limestone like finish on a cast stone product.
Fireplace mantels or as some call them fireplace mantles look beautiful
when constructed from cast stone. Cast stone fireplace mantels are used in
any situation. The fireplace mantels are both strong and fireproof.
Fireplace mantels are
a thing of beauty when made from cast stone or precast concrete. Fireplace
mantels are also made from wood. Fireplace mantels or fireplace chimneys
are the main feature in any room and a fireplace mantel made from cast
stone or precast concrete is a sight to behold.
Cast stone by
Ventura Cast Stone installed in California city's such as
Los Angeles, Beverly Hills, Bel Air, Ventura or Santa Barbara has to be
mechanically fastened to the wood frame of a building usually with
stainless steel or galvanized attachments, this because of earthquake
codes. There are many historical buildings in California with cast
stone as part of their facade. Cast stone in
Los Angeles, Beverly hills, Bel Air, Ventura and Santa Barbara was at it's
most popular in the 1900's. In Santa Barbara, cast stone was used
extensively in the downtown district and also in a primitive form at the
Santa Barbara mission in the form of adobe, a mixture of mud and straw or horsehair
mixed with water and hand shaped into molds. Cast stone in the City
of Ventura was used mainly on churches in the downtown area. Cast
stone in Los Angeles was used in many important buildings including the
famous Los Angeles City hall. In Santa Barbara cast stone and Santa
Barbara stone were used in conjunction in many historical buildings.
Santa Barbara stone also called Santa Barbara sandstone, is found mainly
in Santa Barbara county, is removed from the ground in loose form, the
Santa Barbara stone is then cut and shaped by a stonemason into useable
blocks. Cast stone in Beverly Hills was used in the Beverly Hills
City hall and is now used on many residential buildings.
We also supply and install granite and CDI precast caststone and concrete design product, CDI columns,
Sierra stone caststone columns and balustrade, California precast
products, CDI precast, CDI precast granite moldings and stairs. We also supply and install CDI precast
granite concrete
window and door trim, CDI GFRC columns, Sierra stone products, concrete design, full weight
precast
and granite or limestone products, California precast columns, CDI precast pool coping, CDI precast
or limestone moldings
and CDI fireplace mantles. We also install the products exclusively
manufactured by other company's including,
Sierra concrete design, Sierra stone and Dura art stone, Stone legends,
Moonlight molds, Fineline precast, Concrete design inc. Studio cast
design, Concrete design inc, CDI, Architectural products, Haddonstone.
These products include: cast stone,
limestone, precast concrete, precast, cast, stone, limestone, sandstone,
los angeles, ventura, santa barbara, los angeles precast, los angeles
columns, los angeles cast stone, santa barbara precast, santa barbara cast
stone, santa barbara stone, santa barbara columns, ventura cast stone,
ventura precast, ventura columns, ventura stone. These products include: cast stone,
limestone, precast concrete, precast, cast, stone, limestone, sandstone,
los angeles, ventura, santa barbara, los angeles precast, los angeles
columns, los angeles cast stone, santa barbara precast, santa barbara cast
stone, santa barbara stone, santa barbara columns, ventura cast stone,
ventura precast, ventura columns, ventura stone, concrete molds.
Home
About Ventura
cast stone
We at Ventura cast stone are
pleased to introduce this lightweight cast stone or lightweight precast
concrete if you will, into our line of precast concrete and cast stone.
Because lightweight cast stone is made from fiberglass mixed with real
limestone which gives it that stone look, it is not suitable for fireplace
mantle treatments. Lightweight
precast concrete is usually called GFRC or
glass fiber reinforced
concrete, and is manufactured by Ventura cast stone and installed in
the Los Angeles, Ventura and Santa Barbara Counties. Precast concrete
usually weights 100 lbs per cubic foot. Gfrc usually weights 10 lbs
per lin foot. Precast concrete is a lower end product and does not
simulate limestone as does cast stone. Precast concrete resembles finished
concrete and the surface looks like your garage floor. Cast stone resembles
limestone or sandstone. Lightweight cast stone is not a new product but has
been used for years, but not in architectural uses.
Although it is A-class fire rated it may scorch. Precast concrete is usually
used in lower end track homes where budget is a concern, cast stone is
usually used in higher end homes where budget is not a major concern. The
difference between cast stone and precast concrete is easily seen, and even
the novice can appreciate the high quality limestone like finish on a cast
stone product. Fireplace mantels or as some call them fireplace mantles look
beautiful when constructed from cast stone. Cast stone fireplace mantels are
used in any situation. The fireplace mantels are both strong and
fireproof. Lightweight cast stone fireplace mantels may scorch. Fireplace
mantels are a thing of beauty when made from cast stone or precast concrete.
Fireplace mantels are also made from wood. Fireplace mantels or fireplace
chimneys are the main feature in any room and a fireplace mantel made from
cast stone or precast concrete is a sight to behold.
Cast stone installed in California city's such as Los
Angeles, Beverly Hills, Bel Air, Ventura or Santa Barbara has to be
mechanically fastened to the wood frame of a building usually with stainless
steel or galvanized attachments, this because of earthquake codes.
There are many historical buildings in California with cast stone as part of
their facade. Cast stone in Los Angeles, Beverly hills, Bel Air,
Ventura and Santa Barbara was at it's most popular in the 1900's. In
Santa Barbara, cast stone was used extensively in the downtown district and
also in a primitive form at the Santa Barbara mission in the form of adobe,
a mixture of mud and straw or horsehair mixed with water and hand shaped
into molds. Cast stone in the City of Ventura was used mainly on
churches in the downtown area. Cast stone in Los Angeles was used in
many important buildings including the famous Los Angeles City hall.
In Santa Barbara cast stone and Santa Barbara stone were used in conjunction
in many historical buildings. Santa Barbara stone also called Santa
Barbara sandstone, is found mainly in Santa Barbara county, is removed from
the ground in loose form, the Santa Barbara stone is then cut and shaped by
a stonemason into useable blocks. Cast stone in Beverly Hills was used
in the Beverly Hills City hall and is now used on many residential
buildings. We also supply and install granite and CDI precast
caststone and concrete design product, CDI columns, Sierra stone
caststone columns and balustrade, California precast products, CDI precast,
CDI precast granite moldings and stairs. We also supply and install
CDI precast granite concrete window and door trim, CDI GFRC columns, Sierra
stone products, concrete design, full weight precast and granite or
limestone products, California precast columns, CDI precast pool
coping, CDI precast or limestone moldings and CDI fireplace mantles.
We also can install the
products exclusively manufactured by other company's including, sierra
concrete design, sierra stone and dura art stone. These products include:
cast stone, limestone, precast concrete, precast, cast, stone, limestone,
sandstone, los angeles, ventura, santa barbara, los angeles precast, los
angeles columns, los angeles cast stone, santa barbara precast, santa
barbara cast stone, santa barbara stone, santa barbara columns, ventura cast
stone, ventura precast, ventura columns, ventura stone |
Welcome to a pt! The table template that accompanies this set is
variable width, and will adjust to full screen vi
About Ventura Cast Stone
Cast stone
We at Ventura cast stone are pleased to introduce this lightweight cast
stone or lightweight precast concrete if you will, into our line of precast
concrete and cast stone. Because lightweight cast stone is made from
fiberglass strand mixed with real limestone which gives it that stone look,
it is suitable for fireplace mantle treatments.
Lightweight precast
concrete
Lightweight precast concrete is usually called GFRC or glass fiber
reinforced concrete, and is manufactured by Ventura cast stone
and installed in the Los Angeles, Ventura and Santa Barbara Counties.
Precast concrete usually weights 100 lbs per cubic foot. Gfrc usually
weights 10 lbs per lin foot. Precast concrete is a lower end product
and does not simulate limestone as does cast stone. Precast concrete
resembles finished concrete and the surface looks like your garage floor.
Cast stone resembles limestone or sandstone. Lightweight GFRC precast
concrete is not a new product but has been used for years, but not in
architectural uses.
Precast concrete
Precast concrete is usually used in lower end track homes where budget is a
concern, cast stone is usually used in higher end homes where budget is not
a major concern. The difference between cast stone and precast concrete is
easily seen, and even the novice can appreciate the high quality limestone
like finish on a cast stone product. Fireplace mantels or as some call them
fireplace mantles look beautiful when constructed from cast stone. Cast
stone fireplace mantels are used in any situation. The fireplace
mantels are both strong and fireproof. Fireplace mantels are a thing of
beauty when made from cast stone or precast concrete. Fireplace mantels are
also made from wood. Fireplace mantels or fireplace chimneys are the main
feature in any room and a fireplace mantel made from cast stone or precast
concrete is a sight to behold.
Cast stone by
Ventura Cast Stone
installed in California city's such as Los Angeles, Beverly Hills, Bel Air,
Ventura or Santa Barbara has to be mechanically fastened to the wood frame
of a building usually with stainless steel or galvanized attachments, this
because of earthquake codes. There are many historical buildings in
California with cast stone as part of their facade. Cast stone in Los
Angeles, Beverly hills, Bel Air, Ventura and Santa Barbara was at it's most
popular in the 1900's. In Santa Barbara, cast stone was used
extensively in the downtown district and also in a primitive form at the
Santa Barbara mission in the form of adobe, a mixture of mud and straw or
horsehair mixed with water and hand shaped into molds. Cast stone in
the City of Ventura was used mainly on churches in the downtown area.
Cast stone in Los Angeles was used in many important buildings including the
famous Los Angeles City hall. In Santa Barbara cast stone and Santa
Barbara stone were used in conjunction in many historical buildings.
Santa Barbara stone also called Santa Barbara sandstone, is found mainly in
Santa Barbara county, is removed from the ground in loose form, the Santa
Barbara stone is then cut and shaped by a stonemason into useable blocks.
Cast stone in Beverly Hills was used in the Beverly Hills City hall and is
now used on many residential buildings. We also supply and install
granite and CDI precast caststone and concrete design product, CDI
columns, Sierra stone caststone columns and balustrade, California precast
products, CDI precast, CDI precast granite moldings and stairs. We also
supply and install CDI precast granite concrete window and door trim,
CDI GFRC columns, Sierra stone products, concrete design, full weight
precast and granite or limestone products, California precast columns,
CDI precast pool coping, CDI precast or limestone moldings and CDI fireplace
mantles.
We also install the products exclusively manufactured by other company's
including, Sierra concrete
design, Sierra stone and Dura art stone, Stone legends, Moonlight molds,
Fineline precast, Concrete design inc. Studio cast design, Concrete design
inc, CDI, Architectural products, Haddonstone.
These products include: cast stone,
limestone, precast concrete, precast, cast stone,precast concrete,los angeles precast,
ventura,santa barbara precast,los angeles columns,los angeles cast stone,santa barbara precast,
santa barbara cast stone,santa barbara stone,santa barbara columns,
ventura cast stone,ventura precast,ventura columns,ventura stonecast, stone, limestone, sandstone, los
angeles, ventura, santa barbara, los angeles precast, los angeles columns,
los angeles cast stone, santa barbara precast, santa barbara cast stone,
santa barbara stone, santa barbara columns, ventura cast stone, ventura
precast, ventura columns, ventura stone.
These
products include: cast stone, limestone, precast concrete, precast, cast,
stone, limestone, sandstone, los angeles, ventura, santa barbara, los
angeles precast, los angeles columns, los angeles cast stone, santa barbara
precast, santa barbara cast stone, santa barbara stone, santa barbara
columns, ventura cast stone, ventura precast, ventura columns, ventura stone,
Malibu precast, Malibu stone, Malibu columns
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