A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to the field of building material preparation, in particular to high-performance modified recycled concrete and a preparation method thereof. According to the method, the mass ratio is taken as a design parameter, and a formula with a reasonable ratio is provided, so that the prepared recycled concrete has an embedded extrusion structure and relatively high strength. According to the invention, the recycled aggregate is subjected to reinforced modification and slurry coating treatment before material mixing, and active powder such as surface modified bagasse fiber, slag,silica fume and the like is doped during slurry coating treatment, so that higher stacking compactness can be obtained. The technical scheme is beneficial to improving the workability of the recycledconcrete, and is beneficial to improving the compressive strength and the breaking strength. The recycled aggregate is reinforced and modified by filling pores and cracks of the recycled aggregate with fillers such as a UEA expanding agent, magnesium aluminum silicate and the like and then treating with a waterproof agent, so that the water absorption rate of the recycled aggregate is further reduced, and the dry shrinkage performance of the concrete is improved; the recycled concrete provided by the invention has the advantages of high performance and excellent mechanical properties, and hasvery high practical value.
本发明涉及建筑材料制备领域，具体关于一种高性能改性再生混凝土及其制备方法；本方法以质量比为设计参数，提供的配比合理的涉及配方，确保配制得到再生混凝土具有嵌挤结构，从而具有较高的强度，本发明在混合物料前对再生骨料进行了加强改性和包浆处理，包浆处理时掺入表面改性甘蔗渣纤维，矿渣，硅灰等活性粉末同的掺入，能获得较高的堆积密实度，从而对提高再生混凝土的工作性有利，而且有利于提高抗压强度和抗折强度；再生骨料的加强改性是利用UEA膨胀剂，硅酸镁铝等填充剂填充再生骨料的孔隙和裂纹，然后用防水剂处理，进一步降低再生骨料的吸水率，改善混凝土的干缩性能；本发明的再生混凝土具有性能高，力学性能优异的优点，具有很高的实用价值。
The invention relates to the field of building material preparation, in particular to high-performance modified recycled concrete and a preparation method thereof. According to the method, the mass ratio is taken as a design parameter, and a formula with a reasonable ratio is provided, so that the prepared recycled concrete has an embedded extrusion structure and relatively high strength. According to the invention, the recycled aggregate is subjected to reinforced modification and slurry coating treatment before material mixing, and active powder such as surface modified bagasse fiber, slag,silica fume and the like is doped during slurry coating treatment, so that higher stacking compactness can be obtained. The technical scheme is beneficial to improving the workability of the recycledconcrete, and is beneficial to improving the compressive strength and the breaking strength. The recycled aggregate is reinforced and modified by filling pores and cracks of the recycled aggregate with fillers such as a UEA expanding agent, magnesium aluminum silicate and the like and then treating with a waterproof agent, so that the water absorption rate of the recycled aggregate is further reduced, and the dry shrinkage performance of the concrete is improved; the recycled concrete provided by the invention has the advantages of high performance and excellent mechanical properties, and hasvery high practical value.
本发明涉及建筑材料制备领域，具体关于一种高性能改性再生混凝土及其制备方法；本方法以质量比为设计参数，提供的配比合理的涉及配方，确保配制得到再生混凝土具有嵌挤结构，从而具有较高的强度，本发明在混合物料前对再生骨料进行了加强改性和包浆处理，包浆处理时掺入表面改性甘蔗渣纤维，矿渣，硅灰等活性粉末同的掺入，能获得较高的堆积密实度，从而对提高再生混凝土的工作性有利，而且有利于提高抗压强度和抗折强度；再生骨料的加强改性是利用UEA膨胀剂，硅酸镁铝等填充剂填充再生骨料的孔隙和裂纹，然后用防水剂处理，进一步降低再生骨料的吸水率，改善混凝土的干缩性能；本发明的再生混凝土具有性能高，力学性能优异的优点，具有很高的实用价值。
High-performance modified recycled concrete and preparation method thereof
一种高性能改性再生混凝土及其制备方法
2020-12-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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