Engineering properties of structural lightweight concrete …
2.1.2 | Aggregate Expanded shale and clay with a specific gravity of 1.78 and 1.59 along with a manufactured coarse and fine limestone aggregate has been used in this study. The coarse aggregate had nominal max size of 19 mm (3/4 in.) and met the specified requirements for a grade 67 aggregate according to ASTM C33. The expanded clay
Production Process
The expanded shale is then discharged from the kiln onto an air quenched traveling grate cooler. The cooler serves two purposes. One is to cool the newly expanded shale down so it can be easily handled by conventional means, and the other purpose is to preheat the large volumes of air that are needed in the process.
Lightweight Aggregate
Expanded shale, expanded clay and expanded slate (ESCS) lightweight aggregate is prepared by expanding select minerals in a rotary kiln at temperatures over 1000° C. The production and raw material selection …
Lightweight Self-consolidating Concrete with Expanded Shale …
Expanded shale produced by TXI aggregate company, Colorado, USA, was used. In manufacturing process, natural shale is expanded in an oil fired rotary kiln maintained between 1,900 and 1,200 °C. At this temperature, the shale is in a semi-plastic state at which entrapped gases are formed and expansion results creating individual non-connecting ...
Expanded Shale, Clay, and Slate Lightweight …
Expanded Shale, Clay, and Slate Lightweight Aggregate (UN CPC 3756 and 1532) This product group includes expanded shale, clay, and slate lightweight aggregate in all applications but primarily in masonry, concrete, asphalt pavement, lightweight geotechnical fills, horticulture, soil amendment, and water treatment.
Livingston, AL
Arcosa Lightweight Rotary Kiln201 Industrial StreetLivingston, AL 35470(205) 652-9688 Arcosa Lightweight is the largest producer of rotary kiln expanded shale and clay lightweight aggregate in North America, with production facilities in …
Production Process
One is to cool the newly expanded shale down so it can be easily handled by conventional means, and the other purpose is to preheat the large volumes of air that are needed in the process. The cooled vitreous clinker is discharged from the cooler onto an 18 inch belt for …
Use of expanded shale, clay, and slate aggregates and …
Journal of Cleaner Production. ... 20 November 2023, 139443. Use of expanded shale, clay, and slate aggregates and biochar in the clear zone of road infrastructures for sustainable treatment of stormwater. ... previous studies rarely tested ESCS infiltration capacity under compaction. Unlike sand, ESCS is made out of clay or shale aggregate ...
Chapter 2 Rotary Kiln Production of ESCS Lightweight …
This chapter describes the manufacturing of expanded shales, clays, and slates (Fig. 2.1) and is intended for sales, marketing, field service and administrative personnel.
Solite® | Northeast Solite
Northeast Solite has seven decades of world leadership in process innovation, construction application, and design of lightweight aggregate concrete. ... 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% ...
About
Who We Are. As the recognized world leader in lightweight aggregates, process engineering, service, innovation, and construction applications for internal curing concrete and horticultural applications, our unique expanded shale products have been continually produced since 1947.
Arcosa Specialty MaterialsLightweight Expanded …
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 …
Boulder, CO
Arcosa Lightweight Rotary Kiln11728 Highway 93Boulder, CO 80303303.499.1010 Arcosa Lightweight is the largest producer of rotary kiln expanded shale and clay lightweight aggregate in North America, with production facilities in California, Colorado, Texas, Louisiana, Alabama and Arkansas. Arcosa Lightweight is a leading supporter of research, independent testing and field …
Environmental Footprints for the Production Process of …
This report follows the ESCSI production survey of 10 plants in 2023. All five producer members of the ESCSI participated in the study and presented data on expanded shale, clay, and slate …
Specifications | Norlite Agg
2.1.2 AGGREGATE: Expanded shale, clay or slate produced by the rotary kiln method and shall conform to ASTM C330. Natural sand shall conform to ASTM C33. 2.1.3 MIXING WATER: Clean and free from injurious amounts of oils, acids, alkalis, organic materials or other deleterious substances, in accordance with ACI 318.
Physical and Mechanical Properties of Lightweight …
to precise gradations. The result is a high quality, lightweight aggregate that is inert, durable, tough, stable, highly insulated, and free draining. Moreover, the expanded clay production process allows nondangerous waste materials to be reclaimed and thereby avoids the necessity to dispose of them in a landfill or dump—this benefits
(PDF) The effect of expanded shale lightweight aggregates …
In addition, the Expanded Shale, Clay and Slate Institute was founded in 1952 as a non-profit organization which aimed at supporting this industry and ensuring to conduct the necessary research in order to improve the quality and diversify the uses of Expanded Shale. 17 2.3.2 PRODUCTION OF EXPANDED SHALE LIGHTWEIGHT AGGREGATES The production of ...
Expanded Shale Amends Soil in Trial Gardens at Dallas Arboretum
Expanded shale is part of TNLA's recommendation for improving clay soils. The use of expanded shale continues elsewhere on the property. New garden developments such as the Red Maple Rill – a collection with over 80 varieties of Maples and 200 trees began with soil development using approximately 15% expanded shale.
Advancements in Lightweight Artificial …
The first step in commencing the process of extraction of expanded shale is the selection of shale . Shale formations that contain abundant minerals and possess the appropriate geological properties are chosen for …
Chapter 1 Overview and History of the Expanded Shale, …
Expanded Shale, Clay and Slate Lightweight Aggregate The National Bureau of Standards was assigned, first, the task of further research and experimentation, and then, in 1918, the quantity production of the aggregate. In February of that year, Mr. Hayde was granted a patent on his process (U.S. Patent No. 1,255,878),
Lecture 4. Aggregates
To produce lightweight aggregate, the raw material (excluding pumice) is expanded to about twice the original volume of the raw material. The expanded material has properties similar to natural …
Shale Ceramsite: A Deep Dive into the Production Process
After the extraction of shale ore, the production process of shale ceramsite involves at least seven steps: crushing, grinding, batching, granulation, calcination, cooling, and screening. ... Shale ceramsite is formed by processing shale into particles and then sintering it to form a porous lightweight aggregate. In contrast, expanded shale is ...
ACI 213R-14 Guide for Structural Lightweight …
1.2.2 Development of manufacturing process––After the fall of the Roman Empire, lightweight concrete use was limited until the 20th century when a new type of manufac-tured expanded shale LWA became available for commercial use. The rotary kiln process was developed in 1918 and is used to produce expanded shale, clay, and slate. LWAs are manu-
Products
Buildex® lightweight aggregate is produced by quarrying shale and introducing it into a rotary kiln, where it is heated in about one hour to 2000 degrees fahrenheit. During the process the shale expands, becoming less dense, and is vitrified …
Engineering properties of structural lightweight concrete …
Expanded shale refers to a class of clay rich sedimentary rocks, laminated with minerals, such as feldspar, quartz, and chert with many uses in ceramic and construction industry. 11 Most commonly, shale has a relatively angular shape with a bulk density of ranging from 500 to 800 kg/m 3 with a considerably high water absorption of around 12% ...
Environmental Footprint for Expanded Shale, Clay …
The Expanded Shale, Clay and Slate Industry is committed to the efficient production and long-term performance of expanded shale, clay and slate (ESCS) lightweight aggregate. ... when it commissioned its first life-cycle inventory …
Norlite Agg
norlite expanded shale aggregate Norlite is a manufactured lightweight, porous ceramic material produced by expanding and vitrifying select shale in a rotary kiln. The process produces a consistent and predictable high quality ceramic aggregate that is structurally strong, physically stable, durable, environmentally inert, light in weight and ...
Light Expanded Clay Aggregate Rotary Kiln
Lightweight expanded clay aggregate rotary kilns can be produced in the desired LECA size and density. The particle size range of the expanded clay is between 100-200mm, and the particle size of the finished aggregate is generally 0 …
Environmental Footprints for the Production Process of …
Production Process of Expanded . Shale, Clay, and Slate (ESCS) Lightweight Aggregate . Background. This report follows the ESCSI production survey of 10 plants in 2023. All five producer members of the ESCSI participated in the study and presented data on expanded shale, clay, and slate production. The
Expanded Clay Aggregate
During this process the organic components of the clay, which are evenly dispersed, combust. ... 2 Reactivity of lightweight aggregate2.1 Expanded glass. The production of expanded glass as lightweight aggregate is gaining more attention in recent times. ... When non-reactive crushed quartz and expanded shale aggregate were used to partially ...