A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention provides a concrete waterproofing agent, waterproof concrete and a preparation method thereof, and belongs to the technical field of concrete, the concrete waterproofing agent is prepared from the following components by weight: 100-120 parts of cement, 30-50 parts of asphalt powder, 30-50 parts of river sand, 4-7 parts of the concrete waterproofing agent in claim 1, 3-5 parts of fly ash, and 1-2 parts of alum. According to the concrete waterproof agent prepared by the preparation method disclosed by the invention, active Si-OH groups on organic silicon molecules can react with hydroxyl groups on the surface of concrete and the inner wall of a capillary tube to form a silane chain with Si-R groups at the tail end, a layer of uniform and compact hydrophobic film is formed, and the hydrophobic silane film has very low surface tension; the water-proofing agent has the advantages that capillary absorption of pores to water is prevented, the water-proofing effect is fully played, water is effectively prevented from entering the concrete, the water-proofing performance of the concrete can be obviously improved when the water-proofing agent is added into the concrete, and the water-proofing agent has a wide application prospect.
本发明提出了一种混凝土防水剂、防水混凝土及其制备方法，属于混凝土技术领域，由以下重量份制备而成：水泥100‑120份、沥青粉30‑50份、河沙30‑50份、权利要求1所述混凝土防水剂4‑7份、粉煤灰3‑5份、明矾1‑2份。本发明制得了一种混凝土防水剂，有机硅分子上的活性Si‑OH基团能够与混凝土表面及毛细管内壁的羟基反应形成末端带有Si‑R基的硅烷链，形成一层均匀致密的憎水膜，这种斥水性硅烷膜具有很低的表面张力，阻止了毛细孔对水的毛细吸收作用，充分发挥了防水的功效，有效地阻止水分的浸入，加入混凝土中，能够明显提高混凝土的防水性能，具有广阔的应用前景。
The invention provides a concrete waterproofing agent, waterproof concrete and a preparation method thereof, and belongs to the technical field of concrete, the concrete waterproofing agent is prepared from the following components by weight: 100-120 parts of cement, 30-50 parts of asphalt powder, 30-50 parts of river sand, 4-7 parts of the concrete waterproofing agent in claim 1, 3-5 parts of fly ash, and 1-2 parts of alum. According to the concrete waterproof agent prepared by the preparation method disclosed by the invention, active Si-OH groups on organic silicon molecules can react with hydroxyl groups on the surface of concrete and the inner wall of a capillary tube to form a silane chain with Si-R groups at the tail end, a layer of uniform and compact hydrophobic film is formed, and the hydrophobic silane film has very low surface tension; the water-proofing agent has the advantages that capillary absorption of pores to water is prevented, the water-proofing effect is fully played, water is effectively prevented from entering the concrete, the water-proofing performance of the concrete can be obviously improved when the water-proofing agent is added into the concrete, and the water-proofing agent has a wide application prospect.
本发明提出了一种混凝土防水剂、防水混凝土及其制备方法，属于混凝土技术领域，由以下重量份制备而成：水泥100‑120份、沥青粉30‑50份、河沙30‑50份、权利要求1所述混凝土防水剂4‑7份、粉煤灰3‑5份、明矾1‑2份。本发明制得了一种混凝土防水剂，有机硅分子上的活性Si‑OH基团能够与混凝土表面及毛细管内壁的羟基反应形成末端带有Si‑R基的硅烷链，形成一层均匀致密的憎水膜，这种斥水性硅烷膜具有很低的表面张力，阻止了毛细孔对水的毛细吸收作用，充分发挥了防水的功效，有效地阻止水分的浸入，加入混凝土中，能够明显提高混凝土的防水性能，具有广阔的应用前景。
Concrete waterproof agent, waterproof concrete and preparation method of waterproof concrete
一种混凝土防水剂、防水混凝土及其制备方法
2023-03-21
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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