Laboratory characterization of controlled low-strength materials. (January 2015)

• Record Type: Journal Article
• Authors: Qian, Jinsong; Shu, Xiang; Dong, Qiao; Ling, Jianming; Huang, Baoshan
• Is Part Of: Materials & design. Volume 65(2015:Jan.)
• Page Start: 806
• Page End: 813
• Publication Date: 2015-01
• Subjects: Materials -- Periodicals; Engineering design -- Periodicals; Matériaux -- Périodiques; Conception technique -- Périodiques; Electronic journals; 620.11
• DOI: 10.1016/j.matdes.2014.10.012
• Languages: English
• ISSNs: 0264-1275

Abstract

Highlights: Various properties and performance of the materials were characterized. Flowability, mechanical properties, and durability were included. Factors affecting the properties of the mixtures were investigated. Abstract: In the present study, a relatively comprehensive laboratory experiment was conducted to characterize various properties and performance of fresh and hardened controlled low-strength materials (CLSM). The laboratory tests used for characterization of CLSM included flow, segregation, compressive and split tensile strength, resilient modulus, and freeze–thaw tests. The results from the laboratory tests show that water solid ratio and fly ash had significant effects on the flow, segregation, strength, and freeze–thaw resistance whereas cement exhibited little effect on the flow. The results also show that coarse sand caused CLSM more susceptible to segregate. Finally, the correlations between different mechanical properties of CLSM were explored.