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Exposed-aggregate concrete and construction method thereof

A technology of exposed stone concrete and construction method, which can be applied to the coagulation pavement, buildings, roads and other directions of on-site paving, can solve the problems of unfriendly fluorosilicate environment, environmental hazards of exposed stone concrete construction, etc. The use of fluorosilicate, the effect of improving the retardation effect and the effect of improving the retardation efficiency

Active Publication Date: 2020-05-22
陕西隆生建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, since the addition of fluorine-containing silicate in this patent improves the retarding efficiency of the dew stone agent and reduces the amount of dew stone agent, and the fluorine-containing silicate is not friendly to the environment, which brings certain problems to the construction environment of the dew stone concrete. harm

Method used

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  • Exposed-aggregate concrete and construction method thereof
  • Exposed-aggregate concrete and construction method thereof
  • Exposed-aggregate concrete and construction method thereof

Examples

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Embodiment 1

[0033] Embodiment 1: a kind of construction method of exposed stone concrete, comprises the steps:

[0034] (1) Preparation of dew stone agent: Weigh 400g of dissolved water, stir at 32°C at a speed of 250 rpm, add 60g of glucose, 35g of sodium hexametaphosphate, 3g of amantadine hydrochloride, 8.5g of glycerol and 7g of pigments The material iron oxide was stirred at a speed of 250 rpm for 40 minutes to prepare the dew stone agent;

[0035] (2) Concrete preparation: Weigh 160Kg of water and add 1150Kg of coarse aggregate, 800Kg of fine aggregate, 100Kg of mineral powder and 275Kg of cement under the condition of stirring at a speed of 500 rpm. The particle size of the coarse aggregate is 5mm-25mm , the particle size of the fine aggregate is 0.5mm-2mm, the particle size of the mineral powder is 0.02mm-0.6mm, continue to stir for 50min, add 10Kg polycarboxylate water reducer, continue to stir for 40min to obtain concrete;

[0036] (3) Pavement pouring: pour the concrete prepar...

Embodiment 2

[0040] The difference between Example 2 and Example 1 is that Example 2 uses lignosulfonate water reducer instead of polycarboxylate water reducer, and the others are consistent with Example 1.

Embodiment 3

[0042] The difference between embodiment 3 and embodiment 1 is that embodiment 3 uses a coarse aggregate of 5mm-40mm, and the others are consistent with embodiment 1.

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Abstract

The invention discloses exposed-aggregate concrete and a construction method thereof, and relates to the technical field of concrete construction. The exposed-aggregate concrete is prepared from the following exposed-aggregate concrete raw materials in parts by weight: 250-300 parts of cement, 1100-1200 parts of coarse aggregate, 750-850 parts of fine aggregate, 80-120 parts of mineral powder, 8-12 parts of a water reducing agent and 140-180 parts of water. Raw materials of the exposed-aggregate concrete further comprise an exposed-aggregate agent, and the exposed-aggregate agent is prepared from the following raw materials in parts by weight: 0.04 to 0.08 part of glucose, 0.025 to 0.045 part of sodium hexametaphosphate, 0.001 to 0.005 part of amantadine hydrochloride and 0.35 to 0.45 partof dissolving water. The exposed-aggregate concrete has the advantages of good retarding effect and good environmental protection performance. The construction method of the exposed-aggregate concrete comprises the following steps of exposed-aggregate agent preparation, concrete preparation, pavement pouring, pavement maintenance and the like. The construction method of the exposed-aggregate concrete has the advantage that the retarding effect of the product is conveniently improved.

Description

technical field [0001] The invention relates to the technical field of concrete material processing and production, in particular to exposed stone concrete and a construction method thereof. Background technique [0002] Concrete is widely used in road construction and other fields because of its excellent strength and other properties. In the process of expressway construction, due to the fast driving speed of vehicles, the expressway pavement needs to have excellent anti-slip and anti-dazzling functions, and exposed stone concrete has excellent anti-slip, noise reduction, anti-glare and drainage functions, and more and more It is widely used in highway and tunnel pavement construction and other fields. [0003] The patent with the authorized notification number CN103232218B discloses a high-performance concrete dew stone agent and its preparation and application method. The dew stone agent includes A component and B component. Fluorosilicate, penetrating agent, stabilize...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04E01C7/14E01C23/03
CPCC04B28/04C04B2201/50E01C7/142E01C23/03C04B2103/302C04B24/10C04B22/16C04B24/121C04B2103/54C04B14/06C04B18/141C04B24/026
Inventor 潘晓让
Owner 陕西隆生建材有限公司
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