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A platform for research: civil engineering, architecture and urbanism
Preparation method of compression-resistant recycled concrete
The invention relates to the technical field of building material preparation, in particular to a preparation method of compression-resistant recycled concrete. According to the invention, ordinary Portland cement is modified by using a silane coupling agent; then, the sulphoaluminate cement is modified by utilizing a silane coupling agent; the performance is improved, phenol enters the mixed cement; a polymerization reaction is carried out, the compressive strength of recycled concrete is improves, calcium carbonate surface is loaded with microorganisms, pores in the concrete are effectivelyfilled with bacterial spores and nutrient substances; a self-healing protective layer is formed, and activated bacterial spores can effectively bear the high-alkalinity environment of concrete, decomposition of calcium carbonate is facilitated, crystals continuously grow in the life cycle of a recycled concrete structure, and therefore the pressure resistance self-healing repairing effect of recycled concrete is achieved, and wide application prospects are achieved.
本发明涉及建筑材料制备技术领域，具体涉及一种抗压型再生混凝土的制备方法。本发明利用硅烷偶联剂对普通硅酸盐水泥进行改性，再利用硅烷偶联剂对硫铝酸盐水泥进行改性，提高其性能，通过苯酚进入混合水泥内部，发生聚合反应，提高再生混凝土的抗压强度，碳酸钙表面负载微生物，细菌孢子和营养物质有效填充在混凝土内部孔隙中，形成了自愈性保护层，被激活的细菌孢子，有效地承受混凝土的高碱性环境，有利于碳酸钙的分解，在再生混凝土结构的生命周期中，结晶体持续不断地生长，从而达到再生混凝土的抗压性自愈修复效果，具有广泛的应用前景。
Preparation method of compression-resistant recycled concrete
The invention relates to the technical field of building material preparation, in particular to a preparation method of compression-resistant recycled concrete. According to the invention, ordinary Portland cement is modified by using a silane coupling agent; then, the sulphoaluminate cement is modified by utilizing a silane coupling agent; the performance is improved, phenol enters the mixed cement; a polymerization reaction is carried out, the compressive strength of recycled concrete is improves, calcium carbonate surface is loaded with microorganisms, pores in the concrete are effectivelyfilled with bacterial spores and nutrient substances; a self-healing protective layer is formed, and activated bacterial spores can effectively bear the high-alkalinity environment of concrete, decomposition of calcium carbonate is facilitated, crystals continuously grow in the life cycle of a recycled concrete structure, and therefore the pressure resistance self-healing repairing effect of recycled concrete is achieved, and wide application prospects are achieved.
本发明涉及建筑材料制备技术领域，具体涉及一种抗压型再生混凝土的制备方法。本发明利用硅烷偶联剂对普通硅酸盐水泥进行改性，再利用硅烷偶联剂对硫铝酸盐水泥进行改性，提高其性能，通过苯酚进入混合水泥内部，发生聚合反应，提高再生混凝土的抗压强度，碳酸钙表面负载微生物，细菌孢子和营养物质有效填充在混凝土内部孔隙中，形成了自愈性保护层，被激活的细菌孢子，有效地承受混凝土的高碱性环境，有利于碳酸钙的分解，在再生混凝土结构的生命周期中，结晶体持续不断地生长，从而达到再生混凝土的抗压性自愈修复效果，具有广泛的应用前景。
Preparation method of compression-resistant recycled concrete
一种抗压型再生混凝土的制备方法
XIE ZHENGXIANG (author)
2020-04-24
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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