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, Clay & Slate Institute (ESCSI) 2225 E. Murray Holladay Rd, Suite 102 ... all structural lightweight aggregates have a comparable chemical composition and are manufactured in a similar way and at similar temperatures. Lightweight aggregate achieve low density by formation of a porous structure in which the pores are generally ...

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 …

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 ...

Chapter 10 Physical Properties of Expanded Shale, Clay & Slate (ESCS) Lightweight Aggregate and Lightweight Concrete Masonry Units (LWCMU) 10.0 Introduction This chapter provides information on the properties and performance of concrete masonry …

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 ...

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

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 …

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 …

ESCSI updated the study in 2006, 2022, and 2023 and published Product Category Rules (PCR) by ASTM International in 2015 and UL in 2022. The 2023 production survey represents 3.175 million tons or nearly 4.73 million cubic yards of processed materials. The 2023 surveyed energy and emissions indicate significant declines due to continuous …

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)

Buildex ® makes tomorrow better by making todays' buildings, roads, and structures stronger and more sustainable.. Buildex Haydite ® is a ceramic structural lightweight aggregate that saves material, energy, labor and transportation costs. It can be used for numerous applications, including asphalt surface treatments, concrete bridge decks, …

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 …

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

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. …

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 …

Structural grade lightweight aggregates have been extensively used throughout North America for more than 70 years in cast-in-place structural lightweight concretes for high-rise buildings and bridges and are now being widely used for geotechnical applications. ... Expanded Shale, Clay and Slate Institute. 35 East Wacker Dr., Suite 850 Chicago ...

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 ...

aggregates refers to an aggregate that is lightened in weight by sintering expanded shale, clay, slate, and/or coal fly ash [1–3]. Recently, the production of light-weight aggregates using various types of waste has been studied [4–8]. The development of lightweight aggregates using waste materials is extremely promis-

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

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 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 …

There are a wide variety of lightweight concrete types which vary by composition and strength. Lightweight Aggregate Concrete. This type of lightweight concrete uses lightweight aggregates such as pumice and expanded shale, slate, and clay. These aggregates help to reduce the overall weight but still provide strength as …

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). When clay bricks are manufactured, it is impor-

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.

Lightweight aggregates are produced by mining raw shale, clay or slate, crushing them into manageable sizes before being heated in a rotary kiln at temperatures exceeding …

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 ...

For structural applications, lightweight concrete must exhibit a compressive strength greater than 2500 psi (17.0 MPa). The lightweight aggregates used in structural lightweight concrete are usually materials such as expanded shale, clay, or slate, which undergo a firing process in a rotary kiln to develop a porous structure. Additionally ...

🕑 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 …