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Effect of Natural Zeolite on Performance of Sulfoaluminate Cement-based Planting Cementitious Material 被引量:1

Effect of Natural Zeolite on Performance of Sulfoaluminate Cement-based Planting Cementitious Material
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摘要 This paper aimed to improve the water-retention performance and basic physical properties of sulfoaluminate cement(SAC)-based planting cementitious material. The effect of natural zeolite on the performance of SAC-based planting material was investigated. The water-retention performance, porosity, compressive strength, and alkalinity had been tested and TG-DSC analysis had been adopted in this paper. Experimental results showed that zeolite was effective to improve the water-retention capacity and 10%, 20% and 30% natural zeolite increased the pore volume of the hardened pastes by 10.6%, 26.0%, and 38.6%, especially pore size below 0.1 μm was increased by 9.7%, 26.2% and 17.5%. And 10% zeolite was beneficial to the compressive strengths of cementitious material and 1, 3, and 28 d compressive strength reached up to 35.9, 55.0, 80.3 MPa. Furthermore zeolite decreased the alkalinity of pore fluid of hardened cementitious material, while the addition of zeolite reached up to 30%, the alkalinity of pore fluid of hardened cementitious material decreased by 8.9%. Therefore zeolite was suitable for improving the performance of SAC-based planting cementitious material. This paper aimed to improve the water-retention performance and basic physical properties of sulfoaluminate cement(SAC)-based planting cementitious material. The effect of natural zeolite on the performance of SAC-based planting material was investigated. The water-retention performance, porosity, compressive strength, and alkalinity had been tested and TG-DSC analysis had been adopted in this paper. Experimental results showed that zeolite was effective to improve the water-retention capacity and 10%, 20% and 30% natural zeolite increased the pore volume of the hardened pastes by 10.6%, 26.0%, and 38.6%, especially pore size below 0.1 μm was increased by 9.7%, 26.2% and 17.5%. And 10% zeolite was beneficial to the compressive strengths of cementitious material and 1, 3, and 28 d compressive strength reached up to 35.9, 55.0, 80.3 MPa. Furthermore zeolite decreased the alkalinity of pore fluid of hardened cementitious material, while the addition of zeolite reached up to 30%, the alkalinity of pore fluid of hardened cementitious material decreased by 8.9%. Therefore zeolite was suitable for improving the performance of SAC-based planting cementitious material.
出处 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2017年第3期586-590,共5页 武汉理工大学学报(材料科学英文版)
基金 Funded by the National Natural Science Foundation of China(Nos.51302104,51472109) Science and Technology Development Plan of Shandong Province(No.2014G-ZX208001) the Program for Scientific Research Innovation Team in Colleges and Universities of Shandong Province
关键词 zeolite sulfoaluminate cement water-retention performance planting cementitious material zeolite sulfoaluminate cement water-retention performance planting cementitious material
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