Impermeable concrete and construction method thereof

An impermeable concrete and cement technology, which is applied to tools, buildings, roofs, etc. for roof engineering, can solve the problems of long-term crack resistance and impermeability of the roof structure, and achieve improved structural performance, low cost, and improved resistance to osmotic effect

Inactive Publication Date: 2022-03-11
JILIN PROVINCE JIANYUAN DESIGN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the particularity of the roof structure, it needs to withstand summer exposure, winter freezing, rain and snow erosion, solar radiation and other damages. At present, this kind of marine durable concrete structure still cannot meet the special requirements of long-term crack resistance and impermeability of the roof structure.

Method used

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  • Impermeable concrete and construction method thereof

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preparation example Construction

[0030]In the present invention, the air-entraining agent is preferably rosin or rosin condensation polymer. The preparation method of the rosin polycondensate of the present invention preferably comprises: rosin and lignin are heated and melted and mixed homogeneously, and isomerized to obtain an isomerized product A; to the isomerized product A, maleic anhydride or maleic anhydride and Concentrated sulfuric acid is polycondensed to obtain synthetic resin B; polyethylene glycol is added to resin B, and glycerol and / or concentrated sulfuric acid is added to graft esterification to obtain esterification product C; foam stabilization is added to esterification product C Components, heat preservation reaction; cooling, alkali solution neutralization, controlling pH = 8-13, heat preservation reaction, adding tap water dropwise, making the solid content 30±1%, and preparing the air-entraining agent of rosin condensation polymer. The rosin condensation polymer air-entraining agent pr...

Embodiment 1

[0049] A kind of anti-seepage concrete, its raw material comprises the composition of following weight part: 100 parts of cement, 330 parts of coarse aggregate, 250 parts of fine aggregate, 65 parts of fly ash, 30 parts of admixture (6 parts of air-entraining agent, anti-seepage 6 parts of fiber, 6 parts of swelling agent, 6 parts of water reducing agent, 6 parts of waterproofing agent), 55 parts of water; the specific raw materials of this embodiment are shown in Table 1.

[0050] The construction method of above-mentioned anti-seepage concrete comprises the steps:

[0051] Mix cement, coarse aggregate, fine aggregate, and fly ash with water; add air-entraining agent, anti-seepage fiber, expansion agent, water-reducing agent, and water-repellent in sequence and mix evenly to obtain impermeable concrete; pour the impermeable concrete into For the roof with steel structure, the large-area base and roof are poured in groups, and the pool wall is poured continuously in layers; af...

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Abstract

The invention provides impermeable concrete. The impermeable concrete is prepared from the following construction raw materials in parts by weight: 100 parts of cement, 330 parts of coarse aggregate, 250 parts of fine aggregate, 65 parts of fly ash, 30 parts of an additive and 55 parts of water, the admixture comprises 6 parts of an air entraining agent, 6 parts of impermeable fibers, 6 parts of an expanding agent, 6 parts of a water reducing agent and 6 parts of a waterproof agent. The total alkali amount of the impervious concrete is 1t; the raw materials are simple, and the construction is convenient. The air entraining agent changes the internal pore structure of the concrete and cuts off a capillary channel; and the anti-seepage fibers have a crack resisting effect on cracks, so that the brittleness of the concrete is reduced. The anti-seepage concrete provided by the invention is used for construction of a roof structure, after stirring, pouring, vibrating and curing are completed, the anti-seepage strength of the anti-seepage concrete is far higher than that of common concrete, and after 14-day testing, the anti-seepage concrete is free of water seepage and water leakage, higher in weather resistance and not prone to cracking.

Description

[0001] This application is a divisional application with an application date of December 4, 2018, an application number of 201811471955.X, and an invention title of "An Impervious Concrete and Its Construction Method". technical field [0002] The invention relates to the technical field of concrete, in particular to an anti-seepage concrete and a construction method thereof. Background technique [0003] The roof is the uppermost protective component and load-bearing structure of the building, and its waterproof performance is closely related to the quality of the building, the safety and comfort of the occupants. However, there are relatively serious roof waterproofing problems in most housing constructions at present, and leakage occurs from time to time, which seriously affects the construction quality and the interests of the occupants. Some old roof structures are composed of a load-bearing layer and a waterproof layer. Prefabricated hollow slabs are used as the load-b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04E04D15/07C04B111/27
CPCE04D15/07C04B28/04C04B2111/27C04B14/02C04B14/06C04B18/08C04B24/34C04B16/0633C04B22/148C04B22/06C04B24/24
Inventor 李世佳
Owner JILIN PROVINCE JIANYUAN DESIGN GRP
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