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A platform for research: civil engineering, architecture and urbanism
Modified waste rubber, preparation method thereof and cement-based composite material
The invention provides modified waste rubber, a preparation method thereof and a cement-based composite material, and belongs to the technical field of building materials. According to the method, the surface of the waste rubber is softened through microwave heating, then the active mineral micro powder is attached, the adhesion degree of a contact interface between rubber particles and a cement material can be improved, the compatibility of the rubber particles and a cement base material is improved, and under the condition that the influence on the volume weight, the heat conductivity and the fluidity of the cement material is small, the cement material can be recycled. The mechanical property of the cement material is improved; meanwhile, the waste rubber treatment problem can be solved, and the method is more environmentally friendly. The result of the embodiment shows that the volume weight of the material is 1.73-1.87 g/cm < 3 >, the expansion degree is 185-200 mm, the heat conductivity coefficient is 0.47-0.52 W/(m.k), the breaking strength is 9.76-10.33 MPa, and the compressive strength is 29.90-32.41 MPa when the modified waste rubber prepared by the method is added into the cement material.
本发明提供了一种改性废旧橡胶及其制备方法和水泥基复合材料，属于建筑材料技术领域。本发明通过微波加热使废旧橡胶表面软化，然后附着活性矿物微粉，能够提高橡胶颗粒与水泥材料接触界面的黏着度，提高橡胶颗粒与水泥基材的兼容性问题，在对水泥材料的容重、导热性和流动性影响较小的情况下，提高水泥材料的力学性能；同时能够解决废旧橡胶的处理问题，更加绿色环保。实施例的结果显示，将本发明制备的改性废旧橡胶加入到水泥材料中，材料的容重为1.73～1.87g/cm3，扩展度为185～200mm，导热系数为0.47～0.52W/(m·k)，抗折强度为9.76～10.33MPa，抗压强度为29.90～32.41MPa。
Modified waste rubber, preparation method thereof and cement-based composite material
The invention provides modified waste rubber, a preparation method thereof and a cement-based composite material, and belongs to the technical field of building materials. According to the method, the surface of the waste rubber is softened through microwave heating, then the active mineral micro powder is attached, the adhesion degree of a contact interface between rubber particles and a cement material can be improved, the compatibility of the rubber particles and a cement base material is improved, and under the condition that the influence on the volume weight, the heat conductivity and the fluidity of the cement material is small, the cement material can be recycled. The mechanical property of the cement material is improved; meanwhile, the waste rubber treatment problem can be solved, and the method is more environmentally friendly. The result of the embodiment shows that the volume weight of the material is 1.73-1.87 g/cm < 3 >, the expansion degree is 185-200 mm, the heat conductivity coefficient is 0.47-0.52 W/(m.k), the breaking strength is 9.76-10.33 MPa, and the compressive strength is 29.90-32.41 MPa when the modified waste rubber prepared by the method is added into the cement material.
本发明提供了一种改性废旧橡胶及其制备方法和水泥基复合材料，属于建筑材料技术领域。本发明通过微波加热使废旧橡胶表面软化，然后附着活性矿物微粉，能够提高橡胶颗粒与水泥材料接触界面的黏着度，提高橡胶颗粒与水泥基材的兼容性问题，在对水泥材料的容重、导热性和流动性影响较小的情况下，提高水泥材料的力学性能；同时能够解决废旧橡胶的处理问题，更加绿色环保。实施例的结果显示，将本发明制备的改性废旧橡胶加入到水泥材料中，材料的容重为1.73～1.87g/cm3，扩展度为185～200mm，导热系数为0.47～0.52W/(m·k)，抗折强度为9.76～10.33MPa，抗压强度为29.90～32.41MPa。
Modified waste rubber, preparation method thereof and cement-based composite material
一种改性废旧橡胶及其制备方法和水泥基复合材料
JIA YUAN (author) / SUN LILI (author) / HU CHENGUANG (author) / BAI RUIYING (author) / HU HAO (author) / LI JIAQI (author) / LIU GANG (author) / ZHAO ENCI (author) / HOU JIEJING (author) / LI FANGYUAN (author)
2023-11-03
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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