Anti-cracking leakage-proof cement

A cement and leak-proof technology, applied in the field of cement materials for construction, can solve the problems of heavy workload, time-consuming, poor durability, etc., and achieve the effect of prolonging life

Inactive Publication Date: 2007-09-19
董永范
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] In building construction, cement is often used to lay the ground plane on the prefabricated blocks of reinforced concrete structure, especially for the plane of the roof or bridge deck. Seriously, for this kind of phenomenon, the commonly used methods are sealing, covering, plugging, etc., that is, methods such as painting waterproof glue or laying waterproof linoleum on the outside to

Method used

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Embodiment Construction

[0008] Below in conjunction with specific embodiment the present invention is described in further detail:

[0009] In this embodiment, a kind of anti-crack and anti-leakage cement is made by mixing and stirring Fe powder with a content of 15%-35% in Portland cement. This type of cement is used for pouring flat roofs and balconies. When Fe encounters water and air, it is rapidly oxidized to form ferric oxide containing crystal water: Fe 2 o 3 ·nH 2 O, its chemical reaction formula is: 4Fe+3O 2 +nH 2 O=2Fe 2 o 3 ·nH 2 O, Fe produced during oxidation of Fe in cement 2 o 3 ·nH 2 O, due to the increase in volume, it enters the capillary pores of concrete with strong pressure to block water channels and prevent aging. In the repeated process of cracking, infiltration, and oxidation, the outer layer of concrete structure becomes more and more solid and dense, and the oxidation reaction can only be stopped when it is highly sealed. Since Fe has a certain proportion in cemen...

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Abstract

The invention relates to an anti-cracking and anti-leaking cement which considers the portland cement as the raw materials. Meanwhile, it mixes 2.5%-41% by weight of Fe powder into the portland cement and blends uniformly. The added Fe powder with a certain proportion reacts with the air and water to make Fe expand swiftly. The produced powerful penetrability drives cement to automatically fill up the capillary porosity and crack to make the cement imperviousness and conquer the chap and aging of the beton and prolong its service life.

Description

technical field [0001] The invention relates to cement materials for construction, in particular to a kind of cement with anti-crack and anti-leakage. Background technique [0002] In building construction, cement is often used to lay the ground plane on the prefabricated blocks of reinforced concrete structure, especially for the plane of the roof or bridge deck. Seriously, for this kind of phenomenon, the commonly used methods are sealing, covering, plugging, etc., that is, methods such as painting waterproof glue or laying waterproof linoleum on the outside to repair leakage and impermeability, but these methods are difficult to achieve a radical cure. Moreover, the laying of waterproof linoleum needs heating, and the workload is relatively large. Applying waterproof glue only forms a waterproof film on the surface, which has poor durability, and it is not suitable for large-scale use, that is, this method is expensive, laborious and time-consuming. . Contents of the i...

Claims

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Application Information

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IPC IPC(8): C04B7/02C04B14/34C04B22/04
CPCC04B7/02C04B28/04C04B38/02
Inventor 董永范
Owner 董永范
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