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Controlled Low-Strength Materials Composed Solely of By-Products
A series of low-cost controlled low-strength materials (CLSM) mixtures were produced without cement, using only by-products, including Class C fly ash, large quantities of limestone quarry fines, and synthetic gypsum. Flow, setting time, compressive strength, elastic modulus, and freezing-and-thawing resistance of mixtures were evaluated. Results indicated that CLSM mixtures solely comprised of by-products can be designed to provide a wide range of flow, setting time, and strength values. Obtained flow values varied between 200 and 600 mm, setting time varied between a couple of hours and a day, and strength values varied between 237.4 and 9932 kPa. The maximum measured mass loss after 12 freezing-and-thawing cycles was 8%. Results showed that, the addition of synthetic gypsum significantly improved strength and freezing-and-thawing resistance of mixtures.
Controlled Low-Strength Materials Composed Solely of By-Products
A series of low-cost controlled low-strength materials (CLSM) mixtures were produced without cement, using only by-products, including Class C fly ash, large quantities of limestone quarry fines, and synthetic gypsum. Flow, setting time, compressive strength, elastic modulus, and freezing-and-thawing resistance of mixtures were evaluated. Results indicated that CLSM mixtures solely comprised of by-products can be designed to provide a wide range of flow, setting time, and strength values. Obtained flow values varied between 200 and 600 mm, setting time varied between a couple of hours and a day, and strength values varied between 237.4 and 9932 kPa. The maximum measured mass loss after 12 freezing-and-thawing cycles was 8%. Results showed that, the addition of synthetic gypsum significantly improved strength and freezing-and-thawing resistance of mixtures.
Controlled Low-Strength Materials Composed Solely of By-Products
Ceki Halmen (author) / Harsh Shah
ACI materials journal ; 112
2015
Article (Journal)
English
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