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Enhanced type cement and production method thereof

A production method and enhanced technology, applied in the field of building materials, can solve problems such as troublesome construction, affecting project quality, and incompatibility between water reducing agent and cement, and achieve the effects of improving quality, simplifying application, and being suitable for popularization and use

Inactive Publication Date: 2019-05-28
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual projects, there have been incidents where the water reducing agent and cement are not compatible. For example, the concrete poured on site has not solidified for more than 48 hours, which has brought serious troubles to the construction and affected the quality of the project.

Method used

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  • Enhanced type cement and production method thereof
  • Enhanced type cement and production method thereof
  • Enhanced type cement and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The enhanced cement in this embodiment is made by mixing 42.5 grade ordinary Portland cement and powdered naphthalene water reducer in a weight ratio of 100:0.7.

[0023] Formed concrete specimens were compared with the use effect of 42.5 grade ordinary Portland cement before and after adding powder naphthalene superplasticizer. Table 1 is the concrete mix parameters, and Table 2 is the test results of compressive strength. The cement used in No. 1 is 42.5 grade ordinary Portland cement, and the cement used in No. 2 and No. 3 is the enhanced cement prepared in Example 1.

[0024] Table 1 Concrete mix ratio related parameters

[0025]

[0026] Table 2 Concrete compressive strength test results

[0027]

[0028] It can be seen from Table 1 and Table 2 that under the same slump condition, the use of enhanced cement mixed with naphthalene-based water reducer can significantly reduce water consumption. Comparing the compressive strength results of No. 2 and No. 1, u...

Embodiment 2

[0030] The enhanced cement in this embodiment is made by mixing 32.5 grade ordinary Portland cement and powdered naphthalene water reducer in a weight ratio of 100:0.7.

[0031] Formed concrete specimens, comparing the effect of 32.5 grade ordinary Portland cement before and after adding powder naphthalene superplasticizer. Table 3 is the concrete mix parameters, and Table 4 is the test results of compressive strength. The cement used in No. 4 is 32.5 grade ordinary Portland cement, and the cement used in No. 5 and No. 6 is the enhanced cement prepared in Example 2.

[0032] Table 3 Concrete mix ratio related parameters

[0033]

[0034] Table 4 concrete compressive strength test results

[0035]

[0036] It can be seen from Table 3 and Table 4 that under the same slump conditions, the use of enhanced cement mixed with naphthalene-based water reducer can significantly reduce water consumption. Comparing the compressive strength results of No. 5 and No. 4, under the sa...

Embodiment 3

[0038] The enhanced cement in this embodiment is made by mixing 42.5 grade ordinary Portland cement and powder polycarboxylate water reducer with a weight ratio of 100:0.16.

[0039] Formed concrete specimens, comparing the effect of 42.5 grade ordinary Portland cement before and after adding powder polycarboxylate superplasticizer. Table 5 is the concrete mix parameters, and Table 6 is the test results of compressive strength. The cement used in No. 7 is 42.5 grade ordinary Portland cement, and the cement used in No. 8 and No. 9 is the enhanced cement prepared in Example 3.

[0040] Table 5 Concrete mix ratio related parameters

[0041]

[0042] Table 6 concrete compressive strength test results

[0043]

[0044]It can be seen from Table 5 and Table 6 that under the same slump conditions, the use of enhanced cement mixed with powder polycarboxylate water reducer can significantly reduce water consumption. Comparing the compressive strength results of No. 8 and No. 7,...

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Abstract

The embodiment of the invention discloses enhanced type cement and a production method thereof and belongs to the technical field of building materials. The enhanced type cement is prepared from common portland cement and a water reducing agent according to the weight ratio of 100 to (0.05 to 1.5). According to the embodiment provide by the invention, a certain amount of the water reducing agent is added into the common portland cement to obtain cement containing the water reducing agent; when the cement is used, the water reducing agent does not need to be additionally purchased, so that thewater reducing agent can be conveniently used in occasions where the water reducing agent is convenient to use when the cement is used for producing concrete or mortar and the application is simplified; meanwhile, the strength of the concrete also can be increased, the quality of the concrete is improved and the service life of a concrete structure is prolonged; the enhanced type cement has relatively good economic benefits, social benefits and environment benefits and is suitable for being popularized and applied.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of building materials, in particular to a reinforced cement and a manufacturing method thereof. Background technique [0002] Commonly used admixtures in concrete include water reducing agents, air-entraining agents, retarders, early strength agents, accelerators, antifreeze agents, waterproofing agents, etc. The national and industry standards propose performance indicators and technical regulations for these admixtures strict requirements, such as GB8076-2008 "Concrete Admixtures", DL / T5100-2014 "Technical Regulations for Hydraulic Concrete Admixtures". [0003] With the advancement of technology, admixtures have become the fifth necessary material besides cement, coarse and fine aggregates, admixtures and water. Adding admixtures is an important measure to optimize the design of concrete mix ratio and improve the durability of concrete. . Therefore, the newly revised "Code for ...

Claims

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Application Information

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IPC IPC(8): C04B7/02C04B28/04
Inventor 田军涛纪国晋
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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