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A technology of retarder and concrete, applied in the field of concrete retarder, can solve problems such as unsatisfactory concrete strength and air pollution, and achieve the effects of improving retarding effect, increasing strength and high crystal structure
Inactive Publication Date: 2017-01-04
GUILIN HUAYUE ENVIRONMENTAL PROTECTION TECH CO LTD
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Although it can obtain a strong retarding effect, it is still unsatisfactory in terms of concrete application, especially in terms of concrete strength.
In addition, the use of nitrate is prone to produce NO 2 Pollutants such as air pollution
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Embodiment 1
[0022] A concrete retarder, made of the following components in proportion by weight: 5 parts of ammonium phosphate, 6 parts of ammonium sulfate, 7 parts of sodium tripolyphosphate, 12 parts of aminotrimethylene phosphonic acid, 5 parts of gelatin, 2 parts of triol, 3 parts of sodium citrate, 12 parts of zeolite powder, 12 parts of pumice powder, 4 parts of water reducer, 2 parts of dispersant, and 0.5 part of surfactant.
Embodiment 2
[0024] A concrete retarder, made of the following components in proportion by weight: 4 parts of ammonium phosphate, 5 parts of ammonium sulfate, 6 parts of sodium tripolyphosphate, 10 parts of aminotrimethylene phosphonic acid, 3 parts of gelatin, acrylic acid 1 part of triol, 2 parts of sodium citrate, 10 parts of zeolite powder, 10 parts of pumice powder, 3 parts of water reducer, 1 part of dispersant, and 0.4 part of surfactant.
Embodiment 3
[0026] A concrete retarder, made of the following components in proportion by weight: 6 parts of ammonium phosphate, 7 parts of ammonium sulfate, 8 parts of sodium tripolyphosphate, 15 parts of aminotrimethylene phosphonic acid, 7 parts of gelatin, 3 parts of triol, 4 parts of sodium citrate, 15 parts of zeolite powder, 15 parts of pumice powder, 5 parts of water reducer, 3 parts of dispersant, and 0.6 part of surfactant.
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Abstract
The invention discloses a concrete retarder which is prepared from the following components in parts by weight: 4-6 parts of ammonium phosphate, 5-7 parts of ammonium sulfate, 6-8 parts of sodium tripolyphosphate, 10-15 parts of amino trimethylene phosphonic acid, 3-7 parts of gelatin, 1-3 parts of glycerol, 2-4 parts of sodium citrate, 10-15 parts of zeolite powder, 10-15 parts of pumice powder, 3-5 parts of water reducer, 1-3 parts of dispersant and 0.4-0.6 part of surfactant. The concrete retarder has the advantages of good retarding effect, high strength, no pollution and the like, and is a concrete additive with developing future.
Description
technical field [0001] The invention relates to a concrete retarder, which belongs to the technical field of concrete admixtures. Background technique [0002] Concrete admixture is a commonly used reagent in the concrete preparation process. It not only has a small dosage, but also can improve the performance of concrete to meet actual needs. At the same time, it can also save cement, reduce energy consumption and reduce pollutant emissions. Common admixtures are: early strength agent, water reducing agent, air-entraining agent, retarder, etc. Among them, retarder is a kind of heat release rate that can delay and reduce cement hydration, thereby prolonging the time for concrete to fully set, making fresh concrete maintain plasticity for a long time, convenient for pouring, and improving construction efficiency. An admixture that does not adversely affect the performance of the item. Therefore, retarders play an important role in the field of concrete. [0003] At present...
Claims
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Application Information
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