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A method for rapid detection of corrosion resistance coefficient of marine sulfur-aluminum cement

A technology of corrosion resistance coefficient and sulfur-aluminum cement, which is applied in the fields of weather resistance/light resistance/corrosion resistance, measuring devices, instruments, etc., can solve the problems of high test cost and long test cycle, and achieve economical efficiency, short test cycle, and detection The effect of simple method

Active Publication Date: 2017-04-26
广西云燕特种水泥建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The above-mentioned test method has a long test period and high test cost, which is no longer suitable for the development of modern construction speed.

Method used

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  • A method for rapid detection of corrosion resistance coefficient of marine sulfur-aluminum cement
  • A method for rapid detection of corrosion resistance coefficient of marine sulfur-aluminum cement
  • A method for rapid detection of corrosion resistance coefficient of marine sulfur-aluminum cement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Start the cement mortar mixer, put 448g of cement and 1345g of standard sand into the cement mortar mixer, stir for 1-2 minutes, then add 199g of seawater, and wet mix for 3-5 minutes to obtain seawater mortar; put 448g of cement Put 1345g of standard sand into a cement mortar mixer, stir for 1-2 minutes, then add 199g of fresh water, and wet mix for 3-5 minutes to obtain freshwater mortar.

[0031] (2) Fix the empty test mold and the mold sleeve on the vibrating table, and put seawater or freshwater mortar into the test mold in two layers directly from the cement mortar mixer with a spoon. When loading the first layer of mortar, use The large feeder is vertically mounted on the top of the mold sleeve and goes back and forth along each mold groove to level the material layer once, then vibrate 50-60 times, then load the second layer of plastic sand, use a small feeder to sow flat, and vibrate again. Practice 50-60 times, remove the mold cover, remove the test mold f...

Embodiment 2

[0036] (1) Start the cement mortar mixer, put 450g of cement and 1350g of standard sand into the cement mortar mixer, stir for 1-2 minutes, then add 200g of seawater, and wet mix for 3-5 minutes to obtain seawater mortar; put 450g of cement Put 1350g of standard sand into a cement mortar mixer, stir for 1-2 minutes, then add 200g of fresh water, and wet mix for 3-5 minutes to obtain freshwater mortar;

[0037] (2) Fix the empty test mold and the mold sleeve on the vibrating table, and put seawater or freshwater mortar into the test mold in two layers directly from the cement mortar mixer with a spoon. When loading the first layer of mortar, use The large feeder is vertically mounted on the top of the mold sleeve and goes back and forth along each mold groove to level the material layer once, then vibrate 50-60 times, then load the second layer of plastic sand, use a small feeder to sow flat, and vibrate again. Practice 50-60 times, remove the mold cover, remove the test mold f...

Embodiment 3

[0042](1) Start the cement mortar mixer, put 452g of cement and 1355g of standard sand into the cement mortar mixer, stir for 1-2 minutes, then add 201g of seawater, and wet mix for 3-5 minutes to obtain seawater mortar; put 452g of cement Put 1355g of standard sand into a cement mortar mixer, stir for 1-2 minutes, then add 201g of fresh water, and wet mix for 3-5 minutes to obtain freshwater mortar.

[0043] (2) Fix the empty test mold and the mold sleeve on the vibrating table, and put seawater or freshwater mortar into the test mold in two layers directly from the cement mortar mixer with a spoon. When loading the first layer of mortar, use The large feeder is vertically mounted on the top of the mold sleeve and goes back and forth along each mold groove to level the material layer once, then vibrate 50-60 times, then load the second layer of plastic sand, use a small feeder to sow flat, and vibrate again. Practice 50-60 times, remove the mold cover, remove the test mold fr...

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Abstract

The invention relates to a method of rapidly detecting the chemical resistance coefficient of marine sulphate aluminium cement. The method is characterized in that: seawater mortar comprises 448-452 parts by weight of cement, 1345-1355 parts by weight of standard sand, and 199-201 parts by weight of seawater; fresh-water mortar comprises 448-452 parts by weight of cement, 1345-1355 parts by weight of standard sand and 199-201 parts by weight of clean fresh water; a detection process comprises steps of mortar preparation, test piece moulding, test piece maintenance, compressive strength testing, chemical resistance coefficient calculation, and the like; and the method is simple, economical, effective, and rapid.

Description

technical field [0001] The invention relates to a method for detecting the corrosion resistance coefficient of cement, in particular to a method for quickly detecting the corrosion resistance coefficient of marine sulfur-aluminum cement. Background technique [0002] In recent years, countries all over the world have attached great importance to the development of marine resources. The construction of offshore projects such as ports, seawalls, coastal protection, cross-sea bridges, and offshore gas stations in China has developed rapidly. As we all know, marine engineering concrete structures have long been chemically corroded by salts in seawater, especially Cl - Corrosion, and also by sea waves, etc., the environment is very harsh, so the durability of marine concrete has been paid more and more attention. In marine engineering, chloride salt corrosion is the main cause of concrete damage in the world today. In our country, it has been found that the concrete beams and s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N17/00
Inventor 黄芳龙志谋杨毅农承战
Owner 广西云燕特种水泥建材有限公司