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1、 掺合料在再生砂浆中的试验研究1掺合料在再生砂浆中的试验研究掺合料在再生砂浆中的试验研究摘摘 要要随着人类社会的发展和人们环保意识的增强，建筑垃圾的回收利用成为工程界和科研界的热点问题之一。建筑废弃物再生细骨料回收利用研究在我国具有重要的实际意义。本次实验以某建筑物废弃砂浆块作为再生骨料，全面系统的研究天然骨料、再生骨料的各项物理性能。研究不同掺量的掺合料单掺、三掺对天然砂浆和再生砂浆的工作性能、力学性能的影响。得出结论：单掺天然骨料：粉煤灰在 20%；硅粉在 30%；聚丙烯在 1.2Kg/m3；抗折、抗压强度最高；再生砂浆：粉煤灰在 10%；硅粉在 30%；聚丙烯在 1.2Kg/m3；三掺（
2、硅粉10%、变量粉煤灰 10%、聚丙烯 1.2 Kg/m3)；三掺（变量硅粉 20%、粉煤灰10%、聚丙烯 1.2 Kg/m3) 抗压强度，抗折强度最高。三掺变量为硅粉 10%40%时在 28d 天养护条件下达到 7.5M 要求，可以应用于工程中，以达到了节能降耗目的。关键词关键词: : 再生砂浆；硅粉；粉煤灰；聚丙烯；抗压、抗折强度；掺合料在再生砂浆中的试验研究2ExPerimental Study Admixture in the regeneration of MortarABSTRACTAlong with the development of human society and th
3、e people environmental protection consciousness enhancement, the recycling of construction waste become one of the hot problem in the engineering and research community. Construction waste recycled fine aggregate recycling research has important practical significance in our country. The experiment
4、to an abandoned building mortar blocks as recycled aggregates, a comprehensive system of research of natural aggregate, various physical properties of recycled aggregates. Study of different dosage of admixture single doped, three mixing of natural mortar and regeneration performance of mortar, the
5、influence of mechanical properties. Conclusions: (1) only mixed natural aggregate: in 20% of fly ash; Silicon powder in 30%; Polypropylene in 1.2 Kg/m3; Flexural, compressive strength, the highest; (2) regeneration mortar: in 10% of fly ash; Silicon powder in 30%; Polypropylene in 1.2 Kg/m3; Three m
6、ixed (silicon powder 10%, variable 10% of fly ash, polypropylene 1.2 Kg/m3); Three mixed (variable silicon powder 20%, 10% of fly ash, polypropylene 1.2 Kg/m3) compressive strength, flexural strength is the highest. Three mixed variables for the silicon powder 10% 40% under the condition of 28 d day
7、s maintenance of 7.5 M, can be applied to engineering, in order to achieve the purpose of saving energy and reducing consumption.Key words: regeneration of mortar; Silicon Powder; Fly ash; PolyProPylene; The comPressive and flexural strength;掺合料在再生砂浆中的试验研究3目目 录录第一章第一章 绪绪 论论.51.1 引言.51.2 再生材料的研究现状 .6
8、1.3 掺合料硅粉性能.71.4 掺合料聚丙烯性能.81.5 掺合料粉煤灰性能.8第二章第二章 材料的基本性能试验材料的基本性能试验.102.1 天然细骨料的基本性质试验.102.1.1 细骨料的级配.102.1.2 细骨料的堆积密度.112.1.3 细骨料的吸水率.122.1.4 细骨料的表观密度.122.1.5 细骨料的压碎指标.132.1.6 细骨料含泥量.142.2 再生细骨料的基本性质试验.152.2.1 再生细骨料的级配试验.152.2.2 再生细骨料的堆积密度.162.2.3 再生细骨料的吸水率实验.172.2.4 再生细骨料的表观密度试验.182.2.5 再生细骨料的压碎指标.18掺合料在再生砂浆中的试验研究42.2.6 再生细骨料的含泥量.192.3 矿渣硅酸盐水泥.20本章小结.
