A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Composite high-strength anti-crack cement stabilized macadam base and preparation method thereof
The invention discloses a composite high-strength anti-crack cement stabilized macadam base and a preparation method thereof. A cement stabilized composite material is prepared from the following components in parts by mass: 2-8 parts of Portland cement; 350 to 450 parts of aggregate; 60 to 70 parts of water; 1-3 parts of polypropylene fiber; 1 to 3 parts of hydrophilic basalt fiber; 1-2 parts of a water reducing agent; 3-5 parts of an anti-cracking agent; the preparation method comprises the following steps: uniformly mixing and stirring a proper amount of Portland cement, aggregate, polypropylene fiber, hydrophilic basalt fiber and anti-cracking agent to obtain a mixture A; adding the remaining aggregate, water reducing agent, anti-cracking agent, hydrophilic basalt fiber and polypropylene fiber into the mixture A, uniformly spraying water onto the sample, and uniformly mixing and stirring to obtain a mixture B; and the mixture B is divided according to a quartering method and sequentially poured into a barrel to be vibrated, after vibration is completed, the mixture B is put into a vibrating compactor to be compacted, and the composite cement stabilized macadam base material is obtained. The cement-stabilized composite material has excellent dry shrinkage resistance and crack resistance, also has good toughness, and improves the service life and stability of roads.
本发明公开了一种复合型高强抗裂水泥稳定碎石基层及其制备方法，水泥稳定复合材料按质量份数由以下组分制备而成：硅酸盐水泥：2～8份；骨料350～450份；水60～70份；聚丙烯纤维1～3份；亲水玄武岩纤维1～3份；减水剂1～2份；抗裂剂3～5份；制备方法为先取适量的硅酸盐水泥、骨料、聚丙烯纤维、亲水玄武岩纤维、抗裂剂混合搅拌均匀得到混合料A；将剩余的骨料、减水剂、抗裂剂、亲水玄武岩纤维和聚丙烯纤维，加入混合料A中，再将水均匀地喷洒在试料上，混合搅拌均匀得到混合料B；将混合料B按四分法分好依次倒入桶内振捣，振捣完成后放入振动压实机进行压实，得到复合型水泥稳定碎石基层材料。本发明的水泥稳定复合材料具有优异的抗干缩和抗裂性能，同时还具有较好的韧性，提高了道路的使用寿命和稳定性。
Composite high-strength anti-crack cement stabilized macadam base and preparation method thereof
The invention discloses a composite high-strength anti-crack cement stabilized macadam base and a preparation method thereof. A cement stabilized composite material is prepared from the following components in parts by mass: 2-8 parts of Portland cement; 350 to 450 parts of aggregate; 60 to 70 parts of water; 1-3 parts of polypropylene fiber; 1 to 3 parts of hydrophilic basalt fiber; 1-2 parts of a water reducing agent; 3-5 parts of an anti-cracking agent; the preparation method comprises the following steps: uniformly mixing and stirring a proper amount of Portland cement, aggregate, polypropylene fiber, hydrophilic basalt fiber and anti-cracking agent to obtain a mixture A; adding the remaining aggregate, water reducing agent, anti-cracking agent, hydrophilic basalt fiber and polypropylene fiber into the mixture A, uniformly spraying water onto the sample, and uniformly mixing and stirring to obtain a mixture B; and the mixture B is divided according to a quartering method and sequentially poured into a barrel to be vibrated, after vibration is completed, the mixture B is put into a vibrating compactor to be compacted, and the composite cement stabilized macadam base material is obtained. The cement-stabilized composite material has excellent dry shrinkage resistance and crack resistance, also has good toughness, and improves the service life and stability of roads.
本发明公开了一种复合型高强抗裂水泥稳定碎石基层及其制备方法，水泥稳定复合材料按质量份数由以下组分制备而成：硅酸盐水泥：2～8份；骨料350～450份；水60～70份；聚丙烯纤维1～3份；亲水玄武岩纤维1～3份；减水剂1～2份；抗裂剂3～5份；制备方法为先取适量的硅酸盐水泥、骨料、聚丙烯纤维、亲水玄武岩纤维、抗裂剂混合搅拌均匀得到混合料A；将剩余的骨料、减水剂、抗裂剂、亲水玄武岩纤维和聚丙烯纤维，加入混合料A中，再将水均匀地喷洒在试料上，混合搅拌均匀得到混合料B；将混合料B按四分法分好依次倒入桶内振捣，振捣完成后放入振动压实机进行压实，得到复合型水泥稳定碎石基层材料。本发明的水泥稳定复合材料具有优异的抗干缩和抗裂性能，同时还具有较好的韧性，提高了道路的使用寿命和稳定性。
Composite high-strength anti-crack cement stabilized macadam base and preparation method thereof
一种复合型高强抗裂水泥稳定碎石基层及其制备方法
CHEN XIAOFEI (author) / YU YU (author) / KANG AIHONG (author) / XU JUN (author) / WU ZHENGGUANG (author) / WU BANGWEI (author) / JIA SILIN (author)
2024-09-06
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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