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Recycled large aggregate concrete capable of being mixed and poured and preparation method thereof
The invention discloses recycled large aggregate concrete capable of being mixed and poured. Each cubic meter of the recycled large aggregate concrete capable of being mixed and poured comprises 700-900 kg of recycled large aggregate, 200-300 kg of a cementing material, 550-650 kg of coarse aggregate, 550-650 kg of fine aggregate, 0-5 kg of a water reducing agent and 100-150 kg of water. The preparation method comprises the following steps: crushing the waste concrete into 20-60mm continuously graded large aggregate; then mixing the large aggregate with other components of the concrete, and obtaining the recycled large-aggregate concrete which can be poured and molded like common concrete. The problems of high water absorption and poor mechanical property caused by the fact that waste concrete is crushed into recycled coarse aggregate to be adhered to a mortar layer are solved, and the problem that rock block concrete cannot be mixed and poured like common concrete is also solved.
本发明公开一种可拌制浇筑的再生大骨料混凝土，每立方可拌制浇筑的再生大骨料混凝土中，包括700‑900kg再生大骨料，200‑300kg胶凝材料，550‑650kg粗骨料，550‑650kg细骨料，0‑5kg减水剂和100‑150kg水；其制备方法是将废弃混凝土破碎成20‑60mm连续级配的大骨料，然后将大骨料与混凝土其他组分一起拌制，得到像普通混凝土一样可浇筑成型的再生大骨料混凝土，不仅消除了将废弃混凝土破碎成再生粗骨料粘附砂浆层带来的吸水率高、力学性能差的问题，还解决了块石混凝土无法像普通混凝土一样拌制浇筑的问题。
Recycled large aggregate concrete capable of being mixed and poured and preparation method thereof
The invention discloses recycled large aggregate concrete capable of being mixed and poured. Each cubic meter of the recycled large aggregate concrete capable of being mixed and poured comprises 700-900 kg of recycled large aggregate, 200-300 kg of a cementing material, 550-650 kg of coarse aggregate, 550-650 kg of fine aggregate, 0-5 kg of a water reducing agent and 100-150 kg of water. The preparation method comprises the following steps: crushing the waste concrete into 20-60mm continuously graded large aggregate; then mixing the large aggregate with other components of the concrete, and obtaining the recycled large-aggregate concrete which can be poured and molded like common concrete. The problems of high water absorption and poor mechanical property caused by the fact that waste concrete is crushed into recycled coarse aggregate to be adhered to a mortar layer are solved, and the problem that rock block concrete cannot be mixed and poured like common concrete is also solved.
本发明公开一种可拌制浇筑的再生大骨料混凝土，每立方可拌制浇筑的再生大骨料混凝土中，包括700‑900kg再生大骨料，200‑300kg胶凝材料，550‑650kg粗骨料，550‑650kg细骨料，0‑5kg减水剂和100‑150kg水；其制备方法是将废弃混凝土破碎成20‑60mm连续级配的大骨料，然后将大骨料与混凝土其他组分一起拌制，得到像普通混凝土一样可浇筑成型的再生大骨料混凝土，不仅消除了将废弃混凝土破碎成再生粗骨料粘附砂浆层带来的吸水率高、力学性能差的问题，还解决了块石混凝土无法像普通混凝土一样拌制浇筑的问题。
Recycled large aggregate concrete capable of being mixed and poured and preparation method thereof
一种可拌制浇筑的再生大骨料混凝土及其制备方法
JI YONGSHENG (author) / YAN JIUXIN (author) / XUE QI (author) / GAO FURONG (author) / ZHANG JIE (author) / MA MINGMING (author) / XU ZHISHAN (author) / ZHOU YANGMEI (author) / GUO YUCHENG (author) / CHEN HAO (author)
2020-08-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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