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Environment-friendly anti-crack concrete and preparation method thereof
The invention relates to the technical field of concrete, and particularly discloses high-strength anti-crack concrete and a preparation method of the high-strength anti-crack concrete. The concrete is prepared from the following components in parts by weight: 100 to 130 parts of superfine fly ash, 160 to 200 parts of river sand, 55 to 75 parts of gravel, 2 to 7 parts of polycarboxylic acid superplasticizer, 30 to 40 parts of waste concrete aggregate, 4 to 8 parts of nano cerium dioxide, 1 to 3 parts of polylactic acid, 30 to 50 parts of calcium sulphoaluminate, 3 to 5 parts of polyacrylonitrile resin balls, 16 to 25 parts of steel fiber and 150 to 350 parts of water. The highest compressive property, splitting tensile strength and breaking strength of the environment-friendly anti-crack concrete are 83.5 MPa, 7.6 MPa and 10.5 MPa respectively, the lowest water absorption rate is 2.5%, the anti-crack grade is 1-3 grade, and the anti-crack property of the concrete is improved.
本申请涉及混凝土技术领域，具体公开了一种高强抗裂混凝土及其制备方法，一种环保抗裂混凝土，包括如下原料：硅酸盐水泥310‑350份，超细粉煤灰100‑130份、河砂160‑200份、碎石55‑75份、聚羧酸高效减水剂2‑7份、废旧混凝土集料30‑40份、纳米二氧化铈4‑8份、聚乳酸1‑3份、硫铝酸钙30‑50份、聚丙烯腈树脂球3‑5份、钢纤维16‑25份和水150‑350份。本申请环保抗裂混凝土抗压性能、劈裂抗拉强度和抗折强度最高分别为83.5MPa、7.6MPa和10.5MPa，吸水率最低为2.5%，抗裂等级均在1‑3级，提高了混凝土的抗裂性。
Environment-friendly anti-crack concrete and preparation method thereof
The invention relates to the technical field of concrete, and particularly discloses high-strength anti-crack concrete and a preparation method of the high-strength anti-crack concrete. The concrete is prepared from the following components in parts by weight: 100 to 130 parts of superfine fly ash, 160 to 200 parts of river sand, 55 to 75 parts of gravel, 2 to 7 parts of polycarboxylic acid superplasticizer, 30 to 40 parts of waste concrete aggregate, 4 to 8 parts of nano cerium dioxide, 1 to 3 parts of polylactic acid, 30 to 50 parts of calcium sulphoaluminate, 3 to 5 parts of polyacrylonitrile resin balls, 16 to 25 parts of steel fiber and 150 to 350 parts of water. The highest compressive property, splitting tensile strength and breaking strength of the environment-friendly anti-crack concrete are 83.5 MPa, 7.6 MPa and 10.5 MPa respectively, the lowest water absorption rate is 2.5%, the anti-crack grade is 1-3 grade, and the anti-crack property of the concrete is improved.
本申请涉及混凝土技术领域，具体公开了一种高强抗裂混凝土及其制备方法，一种环保抗裂混凝土，包括如下原料：硅酸盐水泥310‑350份，超细粉煤灰100‑130份、河砂160‑200份、碎石55‑75份、聚羧酸高效减水剂2‑7份、废旧混凝土集料30‑40份、纳米二氧化铈4‑8份、聚乳酸1‑3份、硫铝酸钙30‑50份、聚丙烯腈树脂球3‑5份、钢纤维16‑25份和水150‑350份。本申请环保抗裂混凝土抗压性能、劈裂抗拉强度和抗折强度最高分别为83.5MPa、7.6MPa和10.5MPa，吸水率最低为2.5%，抗裂等级均在1‑3级，提高了混凝土的抗裂性。
Environment-friendly anti-crack concrete and preparation method thereof
一种环保抗裂混凝土及其制备方法
YANG YONGLIANG (author) / WU YUHANG (author) / ZHANG JUNJIE (author)
2022-04-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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