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A platform for research: civil engineering, architecture and urbanism
Lightweight aggregate concrete and preparation process thereof
The invention relates to the technical field of concrete manufacturing, and particularly discloses lightweight aggregate concrete and a preparation process thereof. The lightweight aggregate concrete is prepared from the following raw materials in parts by weight: 140-190 parts of cement, 320-360 parts of lightweight fine aggregate, 180-250 parts of lightweight coarse aggregate, 2-3 parts of a water reducing agent, and 5-10 parts of carboxymethyl cellulose, wherein the light coarse aggregate is formed by uniformly mixing and drying diatomite and liquid polyethylene glycol terephthalate; and the weight ratio of the diatomite to the polyethylene glycol terephthalate is (2-5): 1. The preparation process comprises the steps of preparing the lightweight coarse aggregate, specifically, melting polyethylene glycol terephthalate into a liquid state, adding diatomite, uniformly stirring and mixing, crushing and sieving after standing and hardening, and taking an undersize product to prepare the lightweight coarse aggregate; and preparing the lightweight aggregate concrete, specifically, weighing the raw materials according to the ratio, and uniformly stirring and mixing to obtain the lightweight aggregate concrete. The method has the advantage of improving the compressive strength of the lightweight aggregate concrete.
本申请涉及混凝土制造的技术领域，具体公开了一种轻骨料混凝土及其制备工艺。轻骨料混凝土由包括以下重量份原料制成：水泥140‑190份；轻质细骨料320‑360份；轻质粗骨料180‑250份；减水剂2‑3份；羧甲基纤维素5‑10份；所述轻质粗骨料由包括硅藻土和液态的聚对苯二甲酸乙二醇酯混匀干结而成；所述硅藻土和聚对苯二甲酸乙二醇酯的重量比为（2‑5）：1；其制备工艺为：质粗骨料的制备：聚对苯二甲酸乙二醇酯熔化至液态加入硅藻土搅拌混匀，静置硬化后破碎过筛，取筛下物制得轻质粗骨料；轻骨料混凝土的制备：按配比称取原料后搅拌混匀制得轻骨料混凝土。本申请具有提高轻骨料混凝土的抗压强度优点。
Lightweight aggregate concrete and preparation process thereof
The invention relates to the technical field of concrete manufacturing, and particularly discloses lightweight aggregate concrete and a preparation process thereof. The lightweight aggregate concrete is prepared from the following raw materials in parts by weight: 140-190 parts of cement, 320-360 parts of lightweight fine aggregate, 180-250 parts of lightweight coarse aggregate, 2-3 parts of a water reducing agent, and 5-10 parts of carboxymethyl cellulose, wherein the light coarse aggregate is formed by uniformly mixing and drying diatomite and liquid polyethylene glycol terephthalate; and the weight ratio of the diatomite to the polyethylene glycol terephthalate is (2-5): 1. The preparation process comprises the steps of preparing the lightweight coarse aggregate, specifically, melting polyethylene glycol terephthalate into a liquid state, adding diatomite, uniformly stirring and mixing, crushing and sieving after standing and hardening, and taking an undersize product to prepare the lightweight coarse aggregate; and preparing the lightweight aggregate concrete, specifically, weighing the raw materials according to the ratio, and uniformly stirring and mixing to obtain the lightweight aggregate concrete. The method has the advantage of improving the compressive strength of the lightweight aggregate concrete.
本申请涉及混凝土制造的技术领域，具体公开了一种轻骨料混凝土及其制备工艺。轻骨料混凝土由包括以下重量份原料制成：水泥140‑190份；轻质细骨料320‑360份；轻质粗骨料180‑250份；减水剂2‑3份；羧甲基纤维素5‑10份；所述轻质粗骨料由包括硅藻土和液态的聚对苯二甲酸乙二醇酯混匀干结而成；所述硅藻土和聚对苯二甲酸乙二醇酯的重量比为（2‑5）：1；其制备工艺为：质粗骨料的制备：聚对苯二甲酸乙二醇酯熔化至液态加入硅藻土搅拌混匀，静置硬化后破碎过筛，取筛下物制得轻质粗骨料；轻骨料混凝土的制备：按配比称取原料后搅拌混匀制得轻骨料混凝土。本申请具有提高轻骨料混凝土的抗压强度优点。
Lightweight aggregate concrete and preparation process thereof
轻骨料混凝土及其制备工艺
TANG DIANMING (author)
2021-11-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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