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A platform for research: civil engineering, architecture and urbanism
High-toughness early-strength polyurethane concrete and preparation method thereof
The invention relates to high-toughness early-strength polyurethane concrete and a preparation method thereof, and belongs to the technical field of concrete. In order to solve the problems of long hardening time and poor strength and toughness of existing concrete, the invention provides high-toughness early-strength polyurethane concrete, which comprises the following components: aggregate, cement, a molecular sieve, combined polyether, polyisocyanate, rubber particles and dioctyl phthalate. According to the high-toughness early-strength polyurethane concrete provided by the invention, the hardening time of the concrete is effectively shortened while the strength and toughness of the concrete are enhanced. In the preparation process of the high-toughness early-strength polyurethane concrete, physical toughening is performed through the rubber particles, chemical toughening is performed through the dioctyl phthalate, and the two toughening modes are combined, so that the polyurethane concrete obtains relatively high toughness. The ribbed reinforcing mesh is pre-buried in the concrete, so that the bending resistance and the tensile property of the high-toughness polyurethane concrete are further enhanced.
本发明涉及一种高韧性早强聚氨酯混凝土及其制备方法，属于混凝土技术领域。为解决现有混凝土硬化时间长、强度及韧性差的问题，本发明提供了一种高韧性早强聚氨酯混凝土，组分包括骨料、水泥、分子筛、组合聚醚、聚异氰酸酯、橡胶颗粒以及邻苯二甲酸二辛酯。本发明提供的高韧性早强聚氨酯混凝土有效缩短了混凝土的硬化时间，同时又增强了混凝土的强度及韧性。本发明在制备高韧性早强聚氨酯混凝土过程中，通过橡胶颗粒进行物理增韧，通过邻苯二甲酸二辛酯进行化学增韧，两种增韧方式相结合使得聚氨酯混凝土获得较高韧性。本发明同时在混凝土中预埋带肋钢筋网，进一步增强了高韧性聚氨酯混凝土的抗弯及抗拉性能。
High-toughness early-strength polyurethane concrete and preparation method thereof
The invention relates to high-toughness early-strength polyurethane concrete and a preparation method thereof, and belongs to the technical field of concrete. In order to solve the problems of long hardening time and poor strength and toughness of existing concrete, the invention provides high-toughness early-strength polyurethane concrete, which comprises the following components: aggregate, cement, a molecular sieve, combined polyether, polyisocyanate, rubber particles and dioctyl phthalate. According to the high-toughness early-strength polyurethane concrete provided by the invention, the hardening time of the concrete is effectively shortened while the strength and toughness of the concrete are enhanced. In the preparation process of the high-toughness early-strength polyurethane concrete, physical toughening is performed through the rubber particles, chemical toughening is performed through the dioctyl phthalate, and the two toughening modes are combined, so that the polyurethane concrete obtains relatively high toughness. The ribbed reinforcing mesh is pre-buried in the concrete, so that the bending resistance and the tensile property of the high-toughness polyurethane concrete are further enhanced.
本发明涉及一种高韧性早强聚氨酯混凝土及其制备方法，属于混凝土技术领域。为解决现有混凝土硬化时间长、强度及韧性差的问题，本发明提供了一种高韧性早强聚氨酯混凝土，组分包括骨料、水泥、分子筛、组合聚醚、聚异氰酸酯、橡胶颗粒以及邻苯二甲酸二辛酯。本发明提供的高韧性早强聚氨酯混凝土有效缩短了混凝土的硬化时间，同时又增强了混凝土的强度及韧性。本发明在制备高韧性早强聚氨酯混凝土过程中，通过橡胶颗粒进行物理增韧，通过邻苯二甲酸二辛酯进行化学增韧，两种增韧方式相结合使得聚氨酯混凝土获得较高韧性。本发明同时在混凝土中预埋带肋钢筋网，进一步增强了高韧性聚氨酯混凝土的抗弯及抗拉性能。
High-toughness early-strength polyurethane concrete and preparation method thereof
一种高韧性早强聚氨酯混凝土及其制备方法
SUN QUANSHENG (author) / WANG YANQI (author) / DING HONGJIAN (author) / HU DANDAN (author) / SUN GUANYU (author) / WANG HONGYANG (author) / SUN ZHONGLIN (author)
2021-06-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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