A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Anhydrite cementing material for constructional engineering
The invention relates to the technical field of building materials, and discloses an anhydrite cementing material for constructional engineering, which comprises hemihydrate gypsum, an acid-base activator, an internal curing agent, a tensile modifier, a compression modifier and a chemical admixture, the volume content of the tensile modifier is 3-8%, the use amount of the compression modifier is 8-12% of the mass of the hemihydrate gypsum, and the use amount of the chemical admixture is 10-20% of the mass of the acid-base activator. The chemical additive is a mixture of sodium trimetaphosphate and latex powder. The internal curing agent is added into the anhydrite cementing material for constructional engineering, the internal curing agent is one or two of the organic high-strength water-absorbing material and the porous water-saturated lightweight aggregate, no matter which internal curing agent is, the internal curing agent can play a water storage role in the anhydrite cementing material for constructional engineering, and in the condensation process, the internal curing agent can be used for curing water in the anhydrite cementing material for constructional engineering. And the internal curing agent can realize a reverse water drainage effect, so that the problems of lack and relatively poor stability are avoided, and the use performance of the anhydrite cementing material for constructional engineering can be improved.
本发明涉及建材技术领域，且公开了一种建筑工程用硬石膏胶结料，包括半水石膏和酸碱激发剂，还包括内养护剂、抗拉改性剂、抗压改性剂和化学外加剂，抗拉改性剂的体积含量为3～8％，抗压改性剂的用量为半水石膏质量的8～12％，化学外加剂为三偏磷酸钠和乳胶粉所组成的混合物。本发明的建筑工程用硬石膏胶结料内添加有内养护剂，其中内养护剂为有机高强吸水材料、多孔饱水轻集料中的一种或者两种，不管是哪种内养护剂，在建筑工程用硬石膏胶结料内均可起到蓄水的作用，在凝结的过程中，内养护剂可实现反向的放水的作用，从而避免了缺少以及稳定性较差的问题，可提高本发明建筑工程用硬石膏胶结料的使用性能。
Anhydrite cementing material for constructional engineering
The invention relates to the technical field of building materials, and discloses an anhydrite cementing material for constructional engineering, which comprises hemihydrate gypsum, an acid-base activator, an internal curing agent, a tensile modifier, a compression modifier and a chemical admixture, the volume content of the tensile modifier is 3-8%, the use amount of the compression modifier is 8-12% of the mass of the hemihydrate gypsum, and the use amount of the chemical admixture is 10-20% of the mass of the acid-base activator. The chemical additive is a mixture of sodium trimetaphosphate and latex powder. The internal curing agent is added into the anhydrite cementing material for constructional engineering, the internal curing agent is one or two of the organic high-strength water-absorbing material and the porous water-saturated lightweight aggregate, no matter which internal curing agent is, the internal curing agent can play a water storage role in the anhydrite cementing material for constructional engineering, and in the condensation process, the internal curing agent can be used for curing water in the anhydrite cementing material for constructional engineering. And the internal curing agent can realize a reverse water drainage effect, so that the problems of lack and relatively poor stability are avoided, and the use performance of the anhydrite cementing material for constructional engineering can be improved.
本发明涉及建材技术领域，且公开了一种建筑工程用硬石膏胶结料，包括半水石膏和酸碱激发剂，还包括内养护剂、抗拉改性剂、抗压改性剂和化学外加剂，抗拉改性剂的体积含量为3～8％，抗压改性剂的用量为半水石膏质量的8～12％，化学外加剂为三偏磷酸钠和乳胶粉所组成的混合物。本发明的建筑工程用硬石膏胶结料内添加有内养护剂，其中内养护剂为有机高强吸水材料、多孔饱水轻集料中的一种或者两种，不管是哪种内养护剂，在建筑工程用硬石膏胶结料内均可起到蓄水的作用，在凝结的过程中，内养护剂可实现反向的放水的作用，从而避免了缺少以及稳定性较差的问题，可提高本发明建筑工程用硬石膏胶结料的使用性能。
Anhydrite cementing material for constructional engineering
一种建筑工程用硬石膏胶结料
LI XIANGFEI (author) / XU YUEMING (author) / ZHU LING (author) / QIAN YIQUN (author)
2022-11-11
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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