粉煤灰、磨砂玻璃纤维和玻璃粉制备地聚合物的强度和耐久性比较

IF 1.1 4区工程技术 Q3 CONSTRUCTION & BUILDING TECHNOLOGY

Materiales de Construccion Pub Date : 2017-10-05 DOI:10.3989/MC.2017.05416

H. Rashidian-Dezfouli, P. Rangaraju

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引用次数: 42

摘要

研究了以粉煤灰、毛玻璃纤维（GGF）和玻璃粉为原料制备的地质聚合物的强度和耐久性特性。采用氢氧化钠和硅酸钠的混合物作为活化剂溶液，研究了不同钠和二氧化硅含量的活化剂对地质聚合物工作性能和抗压强度的影响。本研究中使用的参数是Na2O与粘合剂的质量比（针对钠含量）和活化剂的SiO2与Na2O的质量比。评估了从每种前体获得最高抗压强度的地质聚合物混合物对碱-二氧化硅反应的抵抗力，并将其与硅酸盐水泥混合物的性能进行了比较。试验结果表明，GGF和粉煤灰基地质聚合物的性能优于玻璃粉基地质聚合物混合物。GGF基和粉煤灰基地质聚合物的抗碱硅反应性能优于硅酸盐水泥混合物，而玻璃粉基地质聚合物表现出较差的性能。

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Comparison of strength and durability characteristics of a geopolymer produced from fly ash, ground glass fiber and glass powder

Strength and durability characteristics of geopolymers produced using three precursors, consisting of fly ash, Ground Glass Fiber (GGF), and glass-powder were studied. Combinations of sodium hydroxide and sodium silicate were used as the activator solutions, and the effect of different sodium and silica content of the activators on the workability and compressive strength of geopolymers was investigated. The parameters used in this study were the mass ratio of Na2O-to-binder (for sodium content), and SiO2-to-Na2O of the activator (for silica content). Geopolymer mixtures that achieved the highest compressive strength from each precursor were assessed for their resistance to alkali-silica reaction and compared against the performance of portland cement mixtures. Test results revealed that GGF and fly ash-based geopolymers performed better than glass-powder-based geopolymer mixtures. The resistance of GGF-based and fly ash-based geopolymers to alkali-silica reaction was superior to that of portland cement mixtures, while glass-powder-based geopolymer showed inferior performance.

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来源期刊

Materiales de Construccion 工程技术-材料科学：综合

CiteScore

3.20

自引率

9.50%

发文量

审稿时长

>12 weeks

期刊介绍： Materiales de Construcción is a quarterly, scientific Journal published in English, intended for researchers, plant technicians and other professionals engaged in the area of Construction, Materials Science and Technology. Scientific articles focus mainly on: - Physics and chemistry of the formation of cement and other binders. - Cement and concrete. Components (aggregate, admixtures, additions and similar). Behaviour and properties. - Durability and corrosion of other construction materials. - Restoration and conservation of the materials in heritage monuments. - Weathering and the deterioration of construction materials. - Use of industrial waste and by-products in construction. - Manufacture and properties of other construction materials, such as: gypsum/plaster, lime%2