Information Sheet 9153 January 2015 35 E Wacker Drive, Suite 850 • Chicago, IL 60601 • 801-272-7070 • 312-644-8557 Fax • • info@escsi Embodied Energy to Manufacture Expanded Shale, Clay and Slate (ESCS) Lightweight Aggregate

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 ...

Lightweight aggregates serve the function of dimensionally stable aggregates with suitable density and water absorption and can be prepared from sludge through sintering processes (Huang et al., 2001 ). Huang and Wang (2013) manufactured these aggregates and investigated their structural and nonstructural properties.

Lightweight concrete is a mixture made with lightweight coarse aggregates such as shale, clay, or slate, which give it its characteristic low density. Structural lightweight concrete has an in-place density of 90 to 115 lb/ft³, whereas the density of regular weight concrete ranges from 140 to 150 lb/ft³. This makes lightweight …

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 …

Shale is the most common sedimentary rock, accounting for about 70 percent of the rock in the Earth's crust. Shale is a fine-grained rock made from compacted mud and clay. The defining characteristic of shale is its ability to break into layers or fissility. Black and gray shale are common, but the rock can occur in any color.

🕑 Reading time: 1 minute Lightweight aggregate concrete is prepared by using lightweight aggregate or low density aggregate such as volcanic pumice, clay, slate, shale, scoria, tuff and pellite. Concrete is …

where the aggregate meets the cementitious paste. The superior ITZ found with expanded shale, clay, and slate (ESCS) lightweight concrete can be attributed to several unique characteristics. • The surface of ESCS lightweight aggregates is pozzolanic in nature. The alumina/silicate surface combines with the lime (calcium hydroxide, CaOH 2)

Inert and Sterile- ESCS is a ceramic material, inert and completely inorganic. It can be blended with other soil supplements and is free of insects, weed seeds and soil-borne pests. Non Toxic- ESCS is clean, odorless and contains no toxic minerals that could be damaging to plant or animal life.

15.7.2.1 Expanded Clay, Shale and Slate. Clay bricks are produced by the drying and firing of clay or shale raw material, forming a sintered porous structure. Similarly, the drying and sintering of pelletised clay or shale can produce a usable aggregate, but more especially if the raw material is capable of being 'bloated'.

The structure and the chemical composition of the clay-Ca bentonite aggregates were studied by scanning electron microscope (SEM) and with energy dispersive spectroscopy (EDAX).

These innovative uses of lightweight aggregate can increase the percentages of supplemental cementious materials, which increases the sustainability of concretes. …

ESCS lightweight aggregate is made by expanding raw shale, clay or slate in a rotary kiln at temperatures reaching 2,200 degrees Fahrenheit. As the material cools down, the bubbles form an unconnected network of pores surrounded by a hardened, high-quality ceramic material. This "clinker" material is then crushed or screened into standard ...

The earliest study on properties of Lightweight Expanded Clay aggregates was conducted by O. Arioz et al. (2008) where two types of LECA were produced from two types of clays having different ...

Arcosa Lightweight is the largest producer of rotary kiln expanded shale and clay lightweight aggregate in North America, and is uniquely situated to supply expanded shale and clay lightweight aggregate to markets in most of the 48 contiguous states. Concrete construction products and a variety of other industries rely heavily on the …

Lightweight aggregates (LWA) in North America are typically made by quarrying clay, shale, or slate, which are subsequently crushed and expanded by heating to approximately 1200 °C in a kiln. ... but ground to a different fineness. The physical and chemical analyses indicate that the two. Heat release of pozzolan-CH blends. Fig. 1 …

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 …

LUMNITE cement is often used with lightweight aggregates described by the broad term expanded shale clay or slate ESCS to produce Expanded Shale Bulk Density = 526 lb/ft3 Strictly monitored chemical composition for consistent high product qualityASTM Sustainability Committee Develops Standard for Use of Expanded Shale Clay and Slate …

In most concretes the limiting factor in the long term performance is the integrity of contact zone. Expanded Shale, Clay & Slate Institute. 2225 E. Murray-Holladay Rd, Suite 102 • Salt Lake City, UT 84117 (801) 272-7070 Fax (801) 272-3377 • info@escsi • Publication # 4362. July '06.

Introduction. Most Lightweight Aggregates (LWA) currently on the market are manufactured by firing in rotary kilns (at maximum temperatures from 1000 to 1300 °C) natural raw materials like vermiculite, shale, clay, or slate [1].Along with these expanded clay aggregates, LWA are obtained also from naturally-occurring lightweight materials, …

Highlights. •. ESCS alleviated the negative impact of soil compaction in the clear zone. •. Replacing sand with ESCS in soil enhanced the infiltration capacity by …

In this regard, this study evaluates the engineering properties of structural lightweight concrete containing expanded shale and clay, as coarse aggregate, with a high quantity …

aggregates (expanded, clay, shale, slag or slate or sintered fly ash) and normalweight aggregates having an equilibrium density of 105-120 lb/ft³ (1680- 1920 kg/m³) (ACI 216).

We are America's Leader in Lightweight Aggregate. Arcosa Lightweight is the largest producer of rotary kiln expanded shale and clay lightweight aggregate in North America, with production facilities in Alabama, Arkansas, California, Colorado, Louisiana, Indiana, Kentucky, and Texas.

Publication #3645 03-2014 Expanded Shale, Clay and Slate Institute (ESCSI) 35 E. Wacker Drive, Suite 850 Chicago, IL 60601 801-272-7070 312-644-8557 Fax info@escsi Technical Information ASTM C1670

Expanded shale (ESH) is a ceramic material produced by expanding and vitrifying select shale's, in a rotary kiln. The process produces a high quality ceramic …

Lightweight Aggregate Samples Figure 3 Figure 4 Figure 2 SpG Dry = 1.50 (1 + .085) = 1.38 V s = 1380 kg/m3 2550 kg/m3 = .54, then V pores = 1- .54 = .46.48.52.52 .28 .24 714 kg/m3 1380 kg/m3 = 1.00 - .52 = .48 = = .52 Fraction of light bulk aggregate sample occupied by lightweight aggregate particles Fraction of bulk aggregate sample …

Among these, artificial lightweight aggregates refers to an aggregate that is lightened in weight by sintering expanded shale, clay, slate, and/or coal fly ash [1][2][3].

vermiculite, expandable clay and slate. The quality of LWA results from a carefully controlled manufacturing process. In a rotary kiln, selectively mined shale, clay or slate is combusted (firing) in excess of 2000°F. The LWA material is then processed to precise gradations. The result is a high quality, lightweight aggregate that is inert,

Using Lightweight Aggregate for Internal Curing Concrete CAC for Refractory Applications. The Expanded Shale Clay and Slate Institute ESCSI had experience that seemed to indicate this wasn't true so they teamed up with Peter Craig for some research The team performed a 13 month study comparing normal weight concrete to lightweight …

ESCSI's Reference Manual for the Properties and Applications of Expanded Shale, Clay and Slate Lightweight Aggregate (2007) by Thomas A. Holm and John P. Ries. Preface and Table of Contents. Chapter 1: Overview and History of the Expanded Shale, Clay and Slate Industry. Chapter 2: Manufacturing of ESCS Lightweight Aggregates.

The Federation International Du Beton has graciously granted Expanded Shale, Clay and Slate Institute (ESCSI) permission to present the following case study information on completed major lightweight concrete structural projects. This information is reported in the fib bulletin #8 "Lightweight Aggregate Concrete", fib, CP 88, CH-1015 ...

1. Introduction. Most Lightweight Aggregates (LWA) currently on the market are manufactured by firing in rotary kilns (at maximum temperatures from 1000 to 1300 °C) natural raw materials like vermiculite, shale, clay, or slate [1].Along with these expanded clay aggregates, LWA are obtained also from naturally-occurring lightweight …

The physical and chemical properties of cement, ... the expanded shale lightweight aggregates were pre-soaked for a minimum of 72 h. The saturated surface dry expanded shale aggregates were mixed for 5 min with 75 % of the mixing water then added to the cementitious materials and mixed for an additional minute. ... ESCSI. …

In contrast, ESCS aggregates are made of shale, clay, and slates, which are stabilized at high heat. This creates a reactive surface that can absorb pollutants. Previous studies provided a mechanistic explanation of why ECSC could adsorb more metals and E. coli ( Borthakur et al., 2022a ), and our study corroborated that evidence …

Most lightweight aggregates are produced from raw materials such as clay, shale, slate, natural pumice, and perlite. After mining, the materials are crushed and fed to a rotary kiln that heats them to temperatures of about 1200 °C whereby carbonaceous compounds form gas bubbles and the particles expand.

This product group includes expanded shale, clay, and slate lightweight aggregate in all applications but primarily in masonry, concrete, asphalt pavement, …

Expanded shale, expanded clay and expanded slate (ESCS) lightweight aggregate is prepared by expanding select minerals in a rotary kiln at …