The ceramic-like ESCS lightweight aggregate is made by expanding selected raw shale, clay or slate minerals in a rotary kiln at temperatures over 2000°F. The expansion or bloating process makes the finished ESSC aggregate structurally strong, durable, inert and lightweight. ... Expanded Shale, Clay and Slate Institute. 35 East …
We judiciously select raw materials that possess unique physical characteristics to produce our high performance, rotary kiln expanded shale aggregates. The extreme heat makes our unique shale raw material expand and bloat creating a new ceramic product that is both stronger than common shale and 30% lighter by volume.
PRODUCTION . STALITE's strong end-use products begin with the production processing of our raw material slate. Slate possesses the high strength and lasting durability necessary to create a superior lightweight aggregate. Unlike shale or clay deposits formed from mineral or organic sediments, the slate used in STALITE was formed from volcanic ash. …
Five different types of LWAs (i.e. Y1, Y2, S1, S2, and S3.) made from expanded shale ceramist with different geometries were selected to make LWAC (Fig. 1).The physical properties of the selected LWAs determined by relevant Chinese standard GB/T 17431.2-2010 are presented in Table 1.Y1 and Y2 featured a quasi-spherical …
Lightweight expanded clay aggregate (LECA) is resulted from expanding natural clay in a rotary kiln at 1100–1300 °C. LECA is a porous ceramic with potato or round shape due to the kiln circular movement. The pore structure of LECA is uniform, which makes it lightweight, thermal and sound insulation features.
3.1.12 Lightweight expanded clay aggregate (LECA) LECA [80,98,112–114] is a cellular material produced exploiting the clay expansion processes at high temperatures. The granular material can be used loose or mixed with plaster. It is also used to produce lightweight concrete [115].
We take the weight out of rock. Our exclusive lightweight aggregate concrete is now found in the tallest buildings, longest bridge decks, and infrastructure. We select raw materials that possess the unique physical characteristics required to produce our high performance, rotary kiln expanded shale aggregates.
What is Expanded Shale? Expanded Shale is a lightweight aggregate that is an ideal growing media for hydroponic or aquaponic systems. The shale is mined, crushed and fired under high temperatures in a rotary kiln, producing a clean, inert, porous, and light material. ... The aggregate is also used as an additive in clay soils to increase its ...
A perforated pipe system bedded in lightweight aggregate proved to be the best stormwater solution. Expanded shale was chosen with a gradation of 3/8 inches by 10 inches. This media has a saturated hydraulic conductivity of 1,200 inches per hour and a total pore space of 62 percent (41 percent air-filled porosity and 21 percent moisture …
Anticipating that its members will soon need to produce environmental product declarations (EPDs), ESCSI partnered with UL (as the program operator) to draft a PCR for lightweight aggregate. Along with representatives of ESCSI member companies, the PCR was developed and released in March 2022. PCR development is the prerequisite for creating …
Before heating the samples, the materials' usefulness for producing lightweight aggregates was examined by detecting the elemental and mineralogical composition of the shale samples. The presence of aluminosilicates and flux content confirmed and met the required conditions discussed by Riley's theory for the bloating …
When properly used, they produce dry concretes weighting form 90 to 100 pounds per cubic foot, as compared with 140 to 150 pounds per cubic foot for concretes made with most natural aggregates. These expanded materials make it possible to reduce weight without sacing strength. This is accomplished by using only slightly richer mixes than ...
All plate load tests were conducted in an indoor test pit measuring 2.2 m×3.2 m in plan, and 1.6 m in depth.The test pit was filled with 860 mm of expanded shale aggregate.A schematic diagram of the experimental set-up is shown in Fig. 1.The dimensions of the test pits and depth of the aggregate are such that the 305. mm …
Laterlite Expanded Clay is a lightweight aggregate (LWA), with insulating characteristics made by expanding special natural clays at high temperature (1200°C).Laterlite …
Arcosa Lightweight's expanded shale and clay lightweight aggregate can reduce the density of compacted geotechnical fills by up to one-half. This advantage, coupled with its predictable high internal friction angle, can also reduce lateral forces by more than one-half.
Structural lightweight concrete (SLC) made from expanded shale, clay or slate (ESCS) aggregate not only provides several benefits to make foundations more durable, but it also alleviates concerns ...
Expanded clay or shale, formed by heating suitable sources of clay or shale until the gas is given off and trapped in the semimolten. ... During the First World War designers of ships and barges used rotary kiln produced lightweight aggregates to make concrete that was twice the strength of that normally used at the time for general ...
Before heating the samples, the materials' usefulness for producing lightweight aggregates was examined by detecting the elemental and mineralogical …
Buildex expanded shale lightweight aggregate is our only product, allowing us to concentrate on quality, consistency, service and economy while serving a market area of 15 Midwestern and Rocky Mountain states. 832 Pennsylvania, Lawrence, KS 66044 - Office 22105 MO-371, Dearborn, MO 64439 – Plant
Because expanded shale, clay and slate (ESCS) aggregates have a lower density and a predictably high internal angle of friction, they can help engineers improve a soil's ability to provide robustness and reliability—therefore improving a structure's seismic resilience. ... ESCS lightweight aggregate is easily compacted using standard and ...
Geotechnical Lightweight Fill. The Use of Expanded Shale, Clay and Slate Lightweight Aggregates in Granular Geotechnical Fills (January 2017) Lightweight aggregate fills are approximately half the weight of common fills. This advantage, coupled with its predictable high internal friction angle, can also reduce lateral forces by more than one-half.
Shale, Clay & Slate Lightweight Aggregate And Lightweight Concrete Masonry Units April 2007 Expanded Shale, Clay & Slate Institute (ESCSI) 2225 E. Murray Holladay Rd, …
Laterlite Expanded Clay is a lightweight aggregate (LWA), with insulating characteristics made by expanding special natural clays at high temperature (1200°C).Laterlite Expanded Clay is manufactured in different types and sizes, in granular or crushed form, standard (lighter and insulating applications) or structural (high mechanical strength applications).
A laboratory testing program determines the geotechnical properties of expanded shale lightweight aggregate, tire-derived aggregate, and their mixtures using a large direct shear box, one ...
Lightweight aggregates from the treatment of natural aggregates: The clay or shale is heated in a kiln at a high temperature, which causes the material to expand to make it lightweight. Expanded clays and shales—This is capable of achieving sufficiently high strength for prestressed concrete.
to produce expanded shale, clay, and slate. LWAs are manu-factured by heating small particles of shale, clay, or slate in a rotary kiln. A particle size was discovered that, with limited crushing, produced an aggregate grading suitable for making lightweight concrete (Expanded Shale, Clay and Slate Insti-tute 1971).
Buildex expanded shale lightweight aggregate is our only product, allowing us to concentrate on quality, consistency, service and economy while serving a market area of 15 Midwestern and Rocky Mountain states. 832 Pennsylvania, Lawrence, KS 66044 - Office 22105 MO-371, Dearborn, MO 64439 – Plant
In turn, for a given fly ash values, mixes containing lightweight aggregates (both expanded clay and shale) have a mean density value of ~1883 kg/m 3 which is about 17% lower than their companion mixes with limestone with ~2264 kg/m 3. In the same way, it can be seen that the use of expanded shale (P100F0S) and clay (P100F0C) …
Nominal sizes of 4.75 and 12 mm lightweight expanded shale were used as fine and coarse aggregates, respectively. Expanded shale produced by TXI aggregate company, Colorado, USA, was used. In manufacturing process, nat- ural shale is expanded in an oil fired rotary kiln maintained between 1,900 and 1,200 C.
Abstract. In recent years lightweight aggregates are being used increasingly in geotechnical applications. This paper presents results of large-size one-dimensional compression and direct shear tests performed on lightweight aggregate. The compressibility and shear strength characteristics of the lightweight aggregate are …