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A repairing agent dry mixture for quick maintenance of cement pavement

A dry mixing and cement pavement technology, applied in the field of construction, can solve the problems of long time required for health preservation, large demand for consumables, complicated construction methods, etc., and achieves the effect of reducing the demand for consumables, simplifying the steps of the construction method, and forming fast.

Active Publication Date: 2021-11-12
哈尔滨康力鸿商贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of large demand for consumables, complicated construction methods and long time for curing caused by existing repairing materials for cement pavement maintenance, the purpose of the present invention is to provide a new dry repairing agent for rapid repair of cement pavement. Mixture

Method used

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  • A repairing agent dry mixture for quick maintenance of cement pavement

Examples

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Comparison scheme
Effect test

Embodiment 1

[0026] The repairing agent dry mixture used for rapid maintenance of cement pavement provided by this embodiment is composed of 320 to 450 parts of Portland cement (all Portland cement clinker mainly composed of calcium silicate) in parts by weight. , less than 5% limestone or granulated blast furnace slag, a hydraulic cementitious material made by grinding an appropriate amount of gypsum, collectively referred to as Portland cement, also collectively referred to as Portland cement internationally), 324-417 grading ( Grading refers to the distribution of particle sizes of aggregates at all levels, which can be determined by sieve analysis tests) river sand, 170 to 260 parts of graded crushed stone (referring to the mixture composed of aggregates of various sizes and different sizes, when its When the gradation meets the requirements of the technical specification, it is called a graded aggregate), 12.7-17 parts of silica fume, 3.2-8 parts of fly ash (which is the fine ash colle...

Embodiment 2

[0054] This example provides a formula for the further preferred component dosage of the repair agent dry mixture described in Example 1, that is: in parts by weight, it consists of 354-423 parts of Portland cement, 348-402 parts Graded river sand, 207-238 parts of graded gravel, 13.5-16.2 parts of silica fume, 4.5-7.2 parts of fly ash, 0.3-1.8 parts of calcium formate, 0.6-6.2 parts of triisopropanolamine, 1.3-2.2 parts It is composed of sodium α-alkenyl sulfonate, 0.5-1.0 parts of polyvinyl alcohol and 1.4-2.1 parts of anhydrous calcium chloride.

[0055] The technical effect of this embodiment can be directly derived based on the beneficial effect of Embodiment 1, and will not be repeated here.

Embodiment 3

[0057] This embodiment provides a formula for the further preferred component dosage of the repair agent dry mixture described in Embodiment 2, that is: in parts by weight, it consists of 378 to 405 parts of Portland cement, 362 to 394 parts Graded river sand, 210-232 parts of graded gravel, 13.9-15.4 parts of silicon powder, 5.3-6.2 parts of fly ash, 0.5-1.6 parts of calcium formate, 0.3-5.1 parts of triisopropanolamine, 1.5-2.0 parts It is composed of sodium α-alkenyl sulfonate, 0.6-0.9 parts of polyvinyl alcohol and 1.5-1.9 parts of anhydrous calcium chloride.

[0058] The technical effect of this embodiment can be directly derived based on the beneficial effect of Embodiment 1, and will not be repeated here.

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Abstract

The invention relates to the technical field of construction, and discloses a repairing agent dry mixture used for quick maintenance of cement pavement. The repairing agent dry mixture consists of 320-450 parts of Portland cement, 324-417 parts of graded river sand, 170-260 parts of graded crushed stone, 12.7-17 parts of silica fume, 3.2-4 parts by weight. 8 parts of fly ash, 0.1 to 2 parts of calcium formate, 0.2 to 7 parts of triisopropanolamine, 1.2 to 2.4 parts of sodium α-alkenyl sulfonate, 0.4 to 1.2 parts of polyvinyl alcohol and 1.2 to 2.4 parts of anhydrous chlorinated Calcium mixed composition, and after it is applied to maintenance methods including milling, slag removal, scrubbing, wetting, pouring cement mortar, paving repair agent and plastic film curing, it can not only reduce the demand for consumables and simplify the construction method Steps can also greatly shorten the time required for health preservation, which in turn can be beneficial to quickly complete maintenance tasks and realize the purpose of quickly restoring traffic, greatly facilitating people's travel and the development of national economic activities.

Description

technical field [0001] The invention belongs to the technical field of construction, and in particular relates to a repairing agent dry mixture used for rapid maintenance of cement pavement. Background technique [0002] Cement concrete pavement is the main form of the current pavement. Under the repeated action of increasing traffic load and the cycle of various other environmental and human factors, it will inevitably be damaged to varying degrees. With the cement concrete pavement in service As time goes on, the degree of damage is increasing day by day, mainly manifested as broken boards, cracks, exposed, broken and wrong platforms, etc. In order to ensure the continuous and safe operation of traffic, it is necessary to repair the damaged cement concrete pavement. By comparing relevant industry norms and literature, we know that the strength of repair materials used in cement concrete pavement maintenance engineering must reach 70% of the design strength of the original ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04
Inventor 黄哲米江刘浩任怀军孙宏志胡云栋张凯段宏宇唐天一高旭苏权王玉贵孟凡成吴俊义徐旭邱磊
Owner 哈尔滨康力鸿商贸有限公司
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