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A platform for research: civil engineering, architecture and urbanism
Regenerated environment-friendly concrete and preparation process thereof
The invention relates to the field of building materials, and particularly discloses recycled environment-friendly concrete and a preparation process thereof. The recycled environment-friendly concrete is prepared from the following raw materials in parts by weight: cement, fly ash, mineral powder, water, recycled coarse aggregate, river sand, gravel and a water reducing agent. The recycled coarse aggregate is prepared by the following method: crushing and carbonizing waste concrete to form recycled particles; mixing glass powder, nano silicon dioxide and water to form a treatment solution, adding the regenerated particles, vacuumizing, maintaining the pressure for 2-3 hours, restoring to normal pressure, and drying to prepare pretreated particles; and mixing the pretreated particles, modified polyvinyl alcohol and a liquid alkali-free accelerator, oscillating for 15-20 minutes, vacuumizing, maintaining the pressure for 1-3 hours, spraying molten thermal reversible glue on the surface, stirring while spraying, and drying to prepare the recycled coarse aggregate. The regenerated environment-friendly concrete has the advantages of high compressive strength and strong impermeability.
本申请涉及建筑材料领域，具体公开了一种再生环保型混凝土及其制备工艺。再生环保型混凝土包括以下重量份的原料：水泥、粉煤灰、矿粉、水、再生粗骨料、河砂、碎石、减水剂；所述再生粗骨料采用以下方法制成：将废弃混凝土经破碎后碳化，形成再生颗粒；将玻璃粉、纳米二氧化硅和水混合，形成处理液，加入所述再生颗粒，抽真空，保压2‑3h，恢复至常压，干燥，制成预处理颗粒；将所述预处理颗粒、改性聚乙烯醇和液体无碱速凝剂混合，振荡15‑20min后抽真空，保压1‑3h，然后向表面喷涂熔融的热可逆胶，边喷涂边搅拌，烘干，制成再生粗骨料。本申请的再生环保型混凝土具有抗压强度高、抗渗性强的优点。
Regenerated environment-friendly concrete and preparation process thereof
The invention relates to the field of building materials, and particularly discloses recycled environment-friendly concrete and a preparation process thereof. The recycled environment-friendly concrete is prepared from the following raw materials in parts by weight: cement, fly ash, mineral powder, water, recycled coarse aggregate, river sand, gravel and a water reducing agent. The recycled coarse aggregate is prepared by the following method: crushing and carbonizing waste concrete to form recycled particles; mixing glass powder, nano silicon dioxide and water to form a treatment solution, adding the regenerated particles, vacuumizing, maintaining the pressure for 2-3 hours, restoring to normal pressure, and drying to prepare pretreated particles; and mixing the pretreated particles, modified polyvinyl alcohol and a liquid alkali-free accelerator, oscillating for 15-20 minutes, vacuumizing, maintaining the pressure for 1-3 hours, spraying molten thermal reversible glue on the surface, stirring while spraying, and drying to prepare the recycled coarse aggregate. The regenerated environment-friendly concrete has the advantages of high compressive strength and strong impermeability.
本申请涉及建筑材料领域，具体公开了一种再生环保型混凝土及其制备工艺。再生环保型混凝土包括以下重量份的原料：水泥、粉煤灰、矿粉、水、再生粗骨料、河砂、碎石、减水剂；所述再生粗骨料采用以下方法制成：将废弃混凝土经破碎后碳化，形成再生颗粒；将玻璃粉、纳米二氧化硅和水混合，形成处理液，加入所述再生颗粒，抽真空，保压2‑3h，恢复至常压，干燥，制成预处理颗粒；将所述预处理颗粒、改性聚乙烯醇和液体无碱速凝剂混合，振荡15‑20min后抽真空，保压1‑3h，然后向表面喷涂熔融的热可逆胶，边喷涂边搅拌，烘干，制成再生粗骨料。本申请的再生环保型混凝土具有抗压强度高、抗渗性强的优点。
Regenerated environment-friendly concrete and preparation process thereof
一种再生环保型混凝土及其制备工艺
LEI CHONG (author) / LEI CAN (author) / DU FANGXIANG (author) / ZHANG XINHUA (author)
2022-12-16
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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