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 concrete preparation, in particular to high-strength recycled aggregate concrete and a preparation process thereof, and the high-strength recycled aggregate concrete mainly comprises the following raw materials in parts by weight: 70-100 parts of cement, 50-60 parts of recycled coarse aggregate, 30-50 parts of recycled fine aggregate, 20-30 parts of fly ash, 80-130 parts of water, 10-20 parts of reinforced fiber and 2-3 parts of a water reducing agent. The preparation method of the reinforced fiber comprises the following steps: S11, heating and melting polyamide 66 and polymethacrylate, mixing with calcium chloride to prepare a coating solution, smearing the surface of the steel fiber with the coating solution, and drying to prepare a pretreated fiber; and S12, dipping the pretreated fiber prepared in the step S11 in an acetone solution, taking out and drying. The method has the advantage of improving the mechanical strength of the recycled aggregate concrete.
本发明涉及混凝土制备的领域，特别涉及一种高强度再生骨料混凝土及其制备工艺，主要包括以下重量份数的原料：水泥70‑100份，再生粗骨料50‑60份，再生细骨料30‑50份，粉煤灰20‑30份，水80‑130份，增强纤维10‑20份，减水剂2‑3份；所述增强纤维的制备方法包括如下步骤：S11：将聚酰胺66、聚甲基丙烯酸酯加热熔融后与氯化钙混合，制得涂覆液，将涂覆液涂抹在钢纤维表面，干燥，制得预处理纤维；S12：将步骤S11中制备的预处理纤维放置在丙酮溶液中浸渍，取出干燥即得。本申请具有提高再生骨料混凝土的力学强度的优点。
The invention relates to the field of concrete preparation, in particular to high-strength recycled aggregate concrete and a preparation process thereof, and the high-strength recycled aggregate concrete mainly comprises the following raw materials in parts by weight: 70-100 parts of cement, 50-60 parts of recycled coarse aggregate, 30-50 parts of recycled fine aggregate, 20-30 parts of fly ash, 80-130 parts of water, 10-20 parts of reinforced fiber and 2-3 parts of a water reducing agent. The preparation method of the reinforced fiber comprises the following steps: S11, heating and melting polyamide 66 and polymethacrylate, mixing with calcium chloride to prepare a coating solution, smearing the surface of the steel fiber with the coating solution, and drying to prepare a pretreated fiber; and S12, dipping the pretreated fiber prepared in the step S11 in an acetone solution, taking out and drying. The method has the advantage of improving the mechanical strength of the recycled aggregate concrete.
本发明涉及混凝土制备的领域，特别涉及一种高强度再生骨料混凝土及其制备工艺，主要包括以下重量份数的原料：水泥70‑100份，再生粗骨料50‑60份，再生细骨料30‑50份，粉煤灰20‑30份，水80‑130份，增强纤维10‑20份，减水剂2‑3份；所述增强纤维的制备方法包括如下步骤：S11：将聚酰胺66、聚甲基丙烯酸酯加热熔融后与氯化钙混合，制得涂覆液，将涂覆液涂抹在钢纤维表面，干燥，制得预处理纤维；S12：将步骤S11中制备的预处理纤维放置在丙酮溶液中浸渍，取出干燥即得。本申请具有提高再生骨料混凝土的力学强度的优点。
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| European Patent Office | 2024
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