Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Reinforced recycled aggregate and preparation method thereof
The invention relates to the technical field of concrete recycled aggregates, and discloses a reinforced recycled aggregate. The reinforced recycled aggregate is prepared from, by weight, 60 to 80 parts of recycled aggregate, 10 to 30 parts of silicon powder, 30 to 50 parts of fly ash, 10 to 20 parts of an antifreezing agent, 20 to 30 parts of a water reducing agent, 10 to 20 parts of cement slurry, 80 to 100 parts of a PVA solution and 80 to 100 parts of an organosilicon waterproofing agent, the PVA solution is prepared by diluting a 1% PVA solution with water by 3-5 folds, the organosilicon waterproofing agent is obtained by diluting the organosilicon waterproof agent with water by 3-5 folds, and the water reducing agent is a high-efficiency water reducing agent. According to the reinforced recycled aggregate and the preparation method thereof, the surface condition of the simply crushed recycled aggregate can be improved by adding the PVA solution, stirring and soaking for 48 hours, adding the organosilicon waterproof agent and stirring and soaking for 24 hours, so that the water absorption rate of the simply crushed recycled aggregate is reduced, the reinforcing effect is remarkable, the freezing point of recycled aggregate concrete mortar can be effectively reduced by the antifreezing agent, the freezing resistance of the recycled aggregate concrete is improved, and the purpose of high strength of the recycled aggregate concrete is achieved.
本发明涉及混凝土再生骨料技术领域，且公开了一种强化再生骨料，包括以下份数配比的原料：再生骨料60‑80份、硅粉10‑30份、粉煤灰30‑50份、防冻剂10‑20份、减水剂20‑30份、水泥浆液10‑20份、PVA溶液80‑100份、有机硅防水剂80‑100份，所述PVA溶液由1％PVA溶液用水稀释3‑5倍而来，所述有机硅防水剂是由有机硅防水剂用水稀释3‑5倍而来，所述减水剂为高效减水剂。该强化再生骨料及其制备方法，通过添加PVA溶液，搅拌浸泡48小时，添加有机硅防水剂，搅拌浸泡24小时，均能改善简单破碎再生骨料的表面状况，从而降低简单破碎再生骨料的吸水率，强化效果显著，且防冻剂能有效降低再生骨料混凝土砂浆的冰点，提高再生骨料混凝土的抗冻性，实现了再生骨料混凝土强度高的目的。
Reinforced recycled aggregate and preparation method thereof
The invention relates to the technical field of concrete recycled aggregates, and discloses a reinforced recycled aggregate. The reinforced recycled aggregate is prepared from, by weight, 60 to 80 parts of recycled aggregate, 10 to 30 parts of silicon powder, 30 to 50 parts of fly ash, 10 to 20 parts of an antifreezing agent, 20 to 30 parts of a water reducing agent, 10 to 20 parts of cement slurry, 80 to 100 parts of a PVA solution and 80 to 100 parts of an organosilicon waterproofing agent, the PVA solution is prepared by diluting a 1% PVA solution with water by 3-5 folds, the organosilicon waterproofing agent is obtained by diluting the organosilicon waterproof agent with water by 3-5 folds, and the water reducing agent is a high-efficiency water reducing agent. According to the reinforced recycled aggregate and the preparation method thereof, the surface condition of the simply crushed recycled aggregate can be improved by adding the PVA solution, stirring and soaking for 48 hours, adding the organosilicon waterproof agent and stirring and soaking for 24 hours, so that the water absorption rate of the simply crushed recycled aggregate is reduced, the reinforcing effect is remarkable, the freezing point of recycled aggregate concrete mortar can be effectively reduced by the antifreezing agent, the freezing resistance of the recycled aggregate concrete is improved, and the purpose of high strength of the recycled aggregate concrete is achieved.
本发明涉及混凝土再生骨料技术领域，且公开了一种强化再生骨料，包括以下份数配比的原料：再生骨料60‑80份、硅粉10‑30份、粉煤灰30‑50份、防冻剂10‑20份、减水剂20‑30份、水泥浆液10‑20份、PVA溶液80‑100份、有机硅防水剂80‑100份，所述PVA溶液由1％PVA溶液用水稀释3‑5倍而来，所述有机硅防水剂是由有机硅防水剂用水稀释3‑5倍而来，所述减水剂为高效减水剂。该强化再生骨料及其制备方法，通过添加PVA溶液，搅拌浸泡48小时，添加有机硅防水剂，搅拌浸泡24小时，均能改善简单破碎再生骨料的表面状况，从而降低简单破碎再生骨料的吸水率，强化效果显著，且防冻剂能有效降低再生骨料混凝土砂浆的冰点，提高再生骨料混凝土的抗冻性，实现了再生骨料混凝土强度高的目的。
Reinforced recycled aggregate and preparation method thereof
一种强化再生骨料及其制备方法
ZENG ZHIYONG (Autor:in)
11.01.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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