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A platform for research: civil engineering, architecture and urbanism
Anti-abrasion ultra-high performance concrete and preparation method thereof
The invention discloses abrasion-resistant ultra-high performance concrete and a preparation method thereof, and belongs to the technical field of building materials. The abrasion-resistant ultra-high performance concrete is prepared from the following components in parts by weight: 750 to 850 parts of high-iron phase Portland cement, 150 to 250 parts of fly ash, 100 to 200 parts of silica fume, 1000 to 1300 parts of basalt machine-made sand, 40 to 100 parts of steel fiber, 135 to 405 parts of modified rubber particles, 0.5 to 1.2 parts of modified graphene oxide, 50 to 95 parts of expanding agent, 17 to 45 parts of water reducing agent and 170 to 270 parts of water, the preparation method of the modified rubber particles comprises the following steps: S1, carrying out surface modification treatment on the rubber particles; and S2, shell making treatment. The 28d compressive strength of the ultra-high performance concrete is larger than or equal to 137MPa, the 28d abrasion resistance strength is larger than or equal to 163h/(kg/m < 2 >), the final crack impact energy is larger than or equal to 146kJ, the 56d shrinkage is smaller than or equal to 510 * 10 <-6 >, and the ultra-high performance concrete has the advantages of being high in compressive strength and abrasion resistance strength, excellent in impact resistance and small in shrinkage.
本发明公开了一种抗冲磨超高性能混凝土及其制备方法，属于建筑材料技术领域。所述抗冲磨超高性能混凝土包括以下重量份数的各组分：高铁相硅酸盐水泥750～850份、粉煤灰150～250份、硅灰100～200份、玄武岩机制砂1000～1300份、钢纤维40～100份、改性橡胶颗粒135～405份、改性氧化石墨烯0.5～1.2份、膨胀剂50～95份、减水剂17～45份，水170～270份；所述改性橡胶颗粒的制备方法包括以下步骤：S1.橡胶颗粒的表面改性处理；S2.造壳处理。本发明的超高性能混凝土28d抗压强度≥137MPa，28d抗冲磨强度≥163h/(kg/m2)，终裂冲击功≥146kJ，56d收缩≤510×10‑6，具有抗压强度、抗冲磨强度高，抗冲击性能优良，收缩小的特性。
Anti-abrasion ultra-high performance concrete and preparation method thereof
The invention discloses abrasion-resistant ultra-high performance concrete and a preparation method thereof, and belongs to the technical field of building materials. The abrasion-resistant ultra-high performance concrete is prepared from the following components in parts by weight: 750 to 850 parts of high-iron phase Portland cement, 150 to 250 parts of fly ash, 100 to 200 parts of silica fume, 1000 to 1300 parts of basalt machine-made sand, 40 to 100 parts of steel fiber, 135 to 405 parts of modified rubber particles, 0.5 to 1.2 parts of modified graphene oxide, 50 to 95 parts of expanding agent, 17 to 45 parts of water reducing agent and 170 to 270 parts of water, the preparation method of the modified rubber particles comprises the following steps: S1, carrying out surface modification treatment on the rubber particles; and S2, shell making treatment. The 28d compressive strength of the ultra-high performance concrete is larger than or equal to 137MPa, the 28d abrasion resistance strength is larger than or equal to 163h/(kg/m < 2 >), the final crack impact energy is larger than or equal to 146kJ, the 56d shrinkage is smaller than or equal to 510 * 10 <-6 >, and the ultra-high performance concrete has the advantages of being high in compressive strength and abrasion resistance strength, excellent in impact resistance and small in shrinkage.
本发明公开了一种抗冲磨超高性能混凝土及其制备方法，属于建筑材料技术领域。所述抗冲磨超高性能混凝土包括以下重量份数的各组分：高铁相硅酸盐水泥750～850份、粉煤灰150～250份、硅灰100～200份、玄武岩机制砂1000～1300份、钢纤维40～100份、改性橡胶颗粒135～405份、改性氧化石墨烯0.5～1.2份、膨胀剂50～95份、减水剂17～45份，水170～270份；所述改性橡胶颗粒的制备方法包括以下步骤：S1.橡胶颗粒的表面改性处理；S2.造壳处理。本发明的超高性能混凝土28d抗压强度≥137MPa，28d抗冲磨强度≥163h/(kg/m2)，终裂冲击功≥146kJ，56d收缩≤510×10‑6，具有抗压强度、抗冲磨强度高，抗冲击性能优良，收缩小的特性。
Anti-abrasion ultra-high performance concrete and preparation method thereof
一种抗冲磨超高性能混凝土及其制备方法
GU RUI (author) / DING CHAO (author) / WANG SHAOHUI (author) / WAN RUI (author) / LIU KAI (author) / FEI ZHUANG (author) / WANG RUN (author)
2023-07-25
Patent
Electronic Resource
Chinese
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