A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to the technical field of concrete, and discloses a concrete preparation method by recycling waste concrete blocks. Comprising the following steps: selecting 200-300 parts of waste concrete blocks, 2-6 parts of a polycarboxylate superplasticizer, 20-30 parts of slag, 14-18 parts of a glacial acetic acid solution, 25-35 parts of alkali-resistant glass fibers, 25-35 parts of machine-made sandstone powder, 50-60 parts of Portland fly ash cement, 10-15 parts of pebbles, 15-25 parts of quartz sand and 200-280 parts of water. According to the concrete preparation method capable of recycling the waste concrete blocks, the performance of recycled aggregate is improved by crushing the waste concrete blocks and adding a glacial acetic acid solution, and the recycled aggregate is obtained by stirring and mixing fly ash Portland cement and water and then adding the mixture into the waste concrete. The slag, the alkali-resistant glass fiber, the machine-made sandstone powder, the pebbles and the quartz sand are mixed with the recycled aggregate through the stirrer, and the water and the polycarboxylate superplasticizer are added, so that the strength of the concrete is improved, gaps of the concrete are reduced, and the overall structural strength of the recycled concrete is relatively good.
本发明涉及混凝土技术领域，且公开了一种废弃混凝土块再利用的混凝土制备方法，包括以下步骤：选取废弃混凝土块200‑300份、聚羧酸高效减水剂2‑6份、矿渣20‑30份、冰醋酸溶液14‑18份、耐碱玻璃纤维25‑35份、机制砂石粉25‑35份、粉煤灰硅酸盐水泥50‑60份、卵石10‑15份、石英砂15‑25份和水200‑280份。该废弃混凝土块再利用的混凝土制备方法，通过粉碎废弃混凝土块，并加入冰醋酸溶液，改善再生集料的性能，通过将粉煤灰硅酸盐水泥与水搅拌混合后加入到废弃混凝土中，得到再生骨料，再通过搅拌机将矿渣、耐碱玻璃纤维、机制砂石粉、卵石和石英砂与再生骨料混合，并加入水和聚羧酸高效减水剂，提高了混凝土的强度，同时减小了混凝土的间隙，使再生混凝土整体结构强度较好。
The invention relates to the technical field of concrete, and discloses a concrete preparation method by recycling waste concrete blocks. Comprising the following steps: selecting 200-300 parts of waste concrete blocks, 2-6 parts of a polycarboxylate superplasticizer, 20-30 parts of slag, 14-18 parts of a glacial acetic acid solution, 25-35 parts of alkali-resistant glass fibers, 25-35 parts of machine-made sandstone powder, 50-60 parts of Portland fly ash cement, 10-15 parts of pebbles, 15-25 parts of quartz sand and 200-280 parts of water. According to the concrete preparation method capable of recycling the waste concrete blocks, the performance of recycled aggregate is improved by crushing the waste concrete blocks and adding a glacial acetic acid solution, and the recycled aggregate is obtained by stirring and mixing fly ash Portland cement and water and then adding the mixture into the waste concrete. The slag, the alkali-resistant glass fiber, the machine-made sandstone powder, the pebbles and the quartz sand are mixed with the recycled aggregate through the stirrer, and the water and the polycarboxylate superplasticizer are added, so that the strength of the concrete is improved, gaps of the concrete are reduced, and the overall structural strength of the recycled concrete is relatively good.
本发明涉及混凝土技术领域，且公开了一种废弃混凝土块再利用的混凝土制备方法，包括以下步骤：选取废弃混凝土块200‑300份、聚羧酸高效减水剂2‑6份、矿渣20‑30份、冰醋酸溶液14‑18份、耐碱玻璃纤维25‑35份、机制砂石粉25‑35份、粉煤灰硅酸盐水泥50‑60份、卵石10‑15份、石英砂15‑25份和水200‑280份。该废弃混凝土块再利用的混凝土制备方法，通过粉碎废弃混凝土块，并加入冰醋酸溶液，改善再生集料的性能，通过将粉煤灰硅酸盐水泥与水搅拌混合后加入到废弃混凝土中，得到再生骨料，再通过搅拌机将矿渣、耐碱玻璃纤维、机制砂石粉、卵石和石英砂与再生骨料混合，并加入水和聚羧酸高效减水剂，提高了混凝土的强度，同时减小了混凝土的间隙，使再生混凝土整体结构强度较好。
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