Study of Manufacture Process and Properties of Tailings and Slag Based Geopolymers

Abstract:

The tailings and slag based geopolymers was prepared by sodium silicate, sodium hydroxide alkali-activated tailings and slag. The compressive strength in 7 d under different raw material proportion were tested. The result indicated that tailings and slag based geopolymers has high compressive strength . As the tailings in slag is 80%, the compressive strength in 7d can reach 45.10 MPa . As the Na2SiO3 to NaOH ratio is 0.5, the compressive strength in 7d can reach 63.79 MPa. As the NaOH and sodium silicate concentration in the solution is 35%, the compressive strength in 7d can reach 38.35 MPa respectively; As the curing period is 14 d , the compressive strength can reach 71.25 MPa. As the steel scoria in solid is 20%, the compressive strength in 7d can reach 61.86 MPa respectively.

• Periodical: Advanced Materials Research (Volumes 156-157)
• Pages: 803-807
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.156-157.803
• Online since: October 2010
• Authors: Fu Sheng Niu, Shan Shan Zhou, Shu Xian Liu, Jin Xia Zhang
• Keywords: Compressive Strength, Geopolymer, Slag, Tailing

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