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Strengthen material for concrete antiabrasion layer of ocean engineering and production method thereof

A technology for strengthening materials and marine engineering, applied in the field of building materials, can solve problems such as seldom considering high-performance cement-based materials marine engineering concrete protective layer, etc., and achieve the effect of improving ion transmission performance and durability.

Inactive Publication Date: 2008-10-22
NANCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the past marine engineering where marine high-performance concrete was used, more marine high-performance concrete was used as a whole in marine engineering to achieve the purpose of improving the durability of marine engineering concrete, and special high-performance cement-based concrete was seldom considered. Materials to Prepare Concrete Covers for Marine Engineering

Method used

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  • Strengthen material for concrete antiabrasion layer of ocean engineering and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1 Production of reinforced material for concrete protective layer in marine engineering

[0024] First add 1800kg of slag powder, 1420kg of fly ash, 5600kg of P·II52.5 cement, 7kg of triethanolamine, 71kg of sodium sulfate, and 69kg of naphthalene sulfonate into the mill for 15 minutes. The speed of the mill is 18 rpm. Then add 980kg of silicon powder, 117.6kg of cement-based permeable crystalline waterproof material (THINKABLE waterproof material produced by Shanghai Shink Waterproof Material Co., Ltd.), and continue to mix and grind for 8 minutes, and then evenly add 9.1kg of polypropylene fiber with a length of 3mm and 10mm. Continue to mix and grind for 8 minutes, until the Blaine's specific surface area of ​​the mixed abrasive is ≥650m 2 / kg, finally add 11760kg of extra-fine sand and continue to mix and grind for 8 minutes. After discharging, 21.5t of reinforcement material for the concrete protective layer of ocean engineering was obtained. The performance te...

Embodiment 2

[0027] Example 2 Engineering application of reinforced material for concrete protective layer in marine engineering

[0028] The reinforced material for the marine engineering concrete protective layer produced in Example 1 was used for the precast pouring of the marine engineering concrete protective layer. In order to illustrate the various properties of the reinforced material for the concrete protective layer of marine engineering, a set of C50 marine high-performance concrete was designed as a comparative sample in the embodiment. The mix ratio of the produced marine engineering concrete protective layer reinforcement material (No.: MECS) and C50 offshore high performance concrete (No.: MHPC) is shown in Table 2, and the performance test data is shown in Table 3.

[0029] Table 2

[0030]

serial number

Reinforced material

Feed

Cement

Slag Micro

Pink

Silica fume

River sand

Stone

Shrink

Agent

High efficie...

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PUM

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Abstract

An ocean engineering concrete cover strengthened material and a manufacture method thereof, which is prepared by gel component (comprising cement, mineral admixture and modifier), framework component (superfine sand) and property adjusting component (comprising small crack component and micro crack self-healing component) according to certain ratios by the blend-milling technique. In the construction site of the ocean engineering concrete cover, pre-produced ocean engineering concrete cover strengthened material is adopted to prepare the ocean engineering concrete cover, thus simplifying concrete construction procedures and being convenient for quality control. The ocean engineering concrete cover strengthened material of the invention is applied to the ocean engineering concrete cover, which can effectively improve the durability of the ocean engineering concrete and especially can improve the capability of resisting chloride ion penetration.

Description

Technical field [0001] The invention belongs to the category of building materials, and specifically relates to a marine engineering concrete protective layer strengthening material and a production method thereof. Background technique [0002] In the marine environment, the corrosion of steel bars caused by the corrosion of chloride ions leads to the decline of the durability of marine engineering concrete structures. It is one of the problems that need to be solved urgently in the engineering community, and it is also one of the current research hotspots in the field of concrete materials. The United States has begun research on corrosion of steel bars in chloride environments since the 1950s, and in the mid-1980s, it implemented the "Strategic Highway Research Program" nationwide specifically for highway engineering to study the corrosion of steel bars in highway bridges; the United Kingdom The "Marine Research Project" was launched in the 1970s to conduct research on the corr...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B18/08C04B14/04
CPCY02W30/91
Inventor 王信刚胡明玉宋固全李细保赵世忠
Owner NANCHANG UNIV
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