Method for judging water demand of cementing material

A gelling material and water demand technology, applied in the direction of analyzing materials, measuring devices, flow characteristics, etc., can solve the problems of large water demand and inability to intuitively express the water demand of blended materials, and achieve a practical and intuitive detection method Effect
CN102879299AActive Publication Date: 2013-01-16CHINA CONSTR EIGHT ENG DIV CORP LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA CONSTR EIGHT ENG DIV CORP LTD
Publication Date
2013-01-16

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Abstract

The invention discloses a method for judging water demand of a cementing material. The method comprises the following steps of: mixing cement with fixed mass and standard sand to form contrast mortar, and adding water until the fluidity of the contrast mortar reaches a specified standard; replacing a certain amount of the cement by using a blending material, mixing the cement, the blending material and the standard sand to form experimental mortar, and adding water until the experimental mortar reaches the specified standard; comparing the water added quantity of the contrast mortar with the water added quantity of the experimental mortar, and determining the water demand of the blending material; and weighing the cement and the blending material which are equal, respectively adding water with the same water cement ratio in the cement and the blending material, manually blending the cement and the blending material uniformly, and comparing the viscosity of the cement with the viscosity of the blending material to determine the substitution quantity of the blending material relative to the cement. By the method for judging the water demand of the cementing material, a rapid and visualized method for detecting the water demand of the cementing material is realized. The method for judging the water demand of the cementing material is high in practicality, visualized and rapid, and appropriate blending quantities of various materials can be compared when the materials are used simultaneously.
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Description

technical field

[0001] The invention relates to a method for judging water demand, in particular to a method for judging water demand for gelling materials. Background technique

[0002] In concrete mix design and concrete mixture composition, cement, fly ash and slag powder are the most commonly used cementitious materials. Due to the great difference in the properties of admixtures across the country, especially the performance of fly ash and slag powder, mixing them into concrete as admixtures may lead to increased concrete viscosity or increased concrete segregation. In the practical application of engineering, there is another notable feature, that is, the addition of fly ash and slag powder at the same time. As for the admixture effect of the admixture material, usually in the mass-proportion test of concrete, the admixture amount and effect are determined after repeated trials, adjustments, and verifications. When a new admixture material is adopted, a large number ...

Claims

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