A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention belongs to the technical field of concrete, and provides anti-cracking and anti-seepage concrete, which is prepared by mixing the following raw materials in parts by weight: 50 to 60 parts of cement, 30 to 50 parts of quartz sand, 5 to 9 parts of nano silica fume, 3.5 to 9 parts of fly ash, 8 to 10 parts of sepiolite, 2.5 to 3 parts of waterproof dispersible latex powder, 0.75 to 3.6 parts of capillary crystalline active master batch, 0.9 to 1.5 parts of Dura fiber, 2.5 to 6 parts of powder acrylic cement modifier and 2 to 3 parts of additive. According to the anti-cracking and anti-seepage concrete formula, an expanding agent and polypropylene fibers do not need to be added, the risk that the expansion rate cannot be controlled and the temperature stress concentration and chemical shrinkage cannot be reduced is avoided, the new formula can effectively improve the anti-cracking performance and reduce the cracking risk of early concrete, and the composite material in the formula can obviously improve the durability of the concrete; the water penetration resistance and the sulfate erosion resistance are realized.
本发明属于混凝土技术领域，提供了一种防裂抗渗混凝土，包括以下重量份的原料拌和而成：水泥50～60份，石英砂30～50份，纳米硅灰5～9份，粉煤灰3.5～9份，海泡石8～10份，防水型可分散乳胶粉2.5～3份，渗透结晶活性母料0.75～3.6份，杜拉纤维0.9～1.5份，粉剂丙乳水泥改性剂2.5～6份，添加剂2～3份；本发明防裂抗渗混凝土配方中无需添加膨胀剂和聚丙烯纤维，避免无法控制膨胀率，降低温度应力集中及化学收缩的风险，新配方能有效提升抗裂性能，降低早期混凝土开裂风险，其配方中的复合材料能明显改善混凝土的耐久性能，抗水渗透性能和抗硫酸盐侵蚀性能。
The invention belongs to the technical field of concrete, and provides anti-cracking and anti-seepage concrete, which is prepared by mixing the following raw materials in parts by weight: 50 to 60 parts of cement, 30 to 50 parts of quartz sand, 5 to 9 parts of nano silica fume, 3.5 to 9 parts of fly ash, 8 to 10 parts of sepiolite, 2.5 to 3 parts of waterproof dispersible latex powder, 0.75 to 3.6 parts of capillary crystalline active master batch, 0.9 to 1.5 parts of Dura fiber, 2.5 to 6 parts of powder acrylic cement modifier and 2 to 3 parts of additive. According to the anti-cracking and anti-seepage concrete formula, an expanding agent and polypropylene fibers do not need to be added, the risk that the expansion rate cannot be controlled and the temperature stress concentration and chemical shrinkage cannot be reduced is avoided, the new formula can effectively improve the anti-cracking performance and reduce the cracking risk of early concrete, and the composite material in the formula can obviously improve the durability of the concrete; the water penetration resistance and the sulfate erosion resistance are realized.
本发明属于混凝土技术领域，提供了一种防裂抗渗混凝土，包括以下重量份的原料拌和而成：水泥50～60份，石英砂30～50份，纳米硅灰5～9份，粉煤灰3.5～9份，海泡石8～10份，防水型可分散乳胶粉2.5～3份，渗透结晶活性母料0.75～3.6份，杜拉纤维0.9～1.5份，粉剂丙乳水泥改性剂2.5～6份，添加剂2～3份；本发明防裂抗渗混凝土配方中无需添加膨胀剂和聚丙烯纤维，避免无法控制膨胀率，降低温度应力集中及化学收缩的风险，新配方能有效提升抗裂性能，降低早期混凝土开裂风险，其配方中的复合材料能明显改善混凝土的耐久性能，抗水渗透性能和抗硫酸盐侵蚀性能。
Anti-cracking and anti-seepage concrete
一种防裂抗渗混凝土
HAO ZHUANYUN (author)
2024-09-20
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2022
Fiber concrete with anti-cracking and anti-seepage functions
| European Patent Office | 2023