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High-strength fiber concrete with high toughness and high cohesiveness c100 strength and its preparation method

A high-adhesive, high-strength fiber technology is applied in the field of high-strength high-strength fiber concrete with high-toughness and high-adhesive C100 strength and its preparation. The effect of using

Active Publication Date: 2022-03-08
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, due to the presence of cracks of different sizes in concrete, adding a single fiber often cannot achieve the best toughening effect

Method used

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  • High-strength fiber concrete with high toughness and high cohesiveness c100 strength and its preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0091] 1) Add 10.5 parts of water reducer to 2 / 3 of the total water, which is recorded as mixed solution 1; add 8 parts of shrinkage reducer and 1.8 parts of defoamer to the total water of 3 One-third of the water is recorded as mixed solution 2, and 17 parts of carboxyl-modified polyvinyl alcohol polymers are prepared for later use, with a total water content of 130 parts; wherein, carboxyl-modified polyvinyl alcohol polymers are prepared according to the mass percentage of raw materials Formation: carboxy-modified polyvinyl alcohol 38.6%, water 60.4%, polyacrylate defoamer 1%;

[0092] 2) Mix 5.1 parts of ramie fiber, 1000 parts of gravel, 710 parts of sand, 395 parts of cement, 90 parts of fly ash, 50 parts of straw ash, 18 parts of silica fume, 2.8 parts of nano silicon, 8.5 parts of basalt fiber, 17.5 parts of CaCO 3 Whiskers were divided into three parts, and then a part of ramie fiber, basalt fiber, CaCO 3 Sprinkle the whiskers evenly in the disc mixer, then place a po...

Embodiment 2

[0101] 1) Add 10.7 parts by mass of water reducing agent to two-thirds of the total water volume, which is recorded as mixed solution 1; add 9 parts of shrinkage reducer and 1.8 parts of defoamer to the total water volume of three One-third of the water is recorded as mixed solution 2, and 15 parts of carboxyl-modified polyvinyl alcohol polymers are prepared for later use, with a total water content of 130 parts; wherein, carboxyl-modified polyvinyl alcohol polymers are prepared according to the mass percentage of raw materials Made: carboxy-modified polyvinyl alcohol 37%, water 62%, polyacrylate defoamer 1%;

[0102] 2) Mix 5.1 parts of ramie fiber, 1000 parts of gravel, 710 parts of sand, 400 parts of cement, 90 parts of fly ash, 45 parts of straw ash, 22 parts of silica fume, 3.2 parts of nano silicon, 8.6 parts of basalt fiber, 17.6 parts of CaCO 3 Whiskers were divided into three parts, and then a part of ramie fiber, basalt fiber, CaCO 3 Sprinkle the whiskers evenly in ...

Embodiment 3

[0110] 1) Add 11 parts by mass of water reducing agent to two-thirds of the total water volume, which is recorded as mixed solution 1; add 8.5 parts of shrinkage reducer and 1.9 parts of defoamer to the total water volume of three One-third of the water is recorded as mixed solution 2, and 15 parts of carboxyl-modified polyvinyl alcohol polymers are prepared for later use, with a total water content of 130 parts; wherein, carboxyl-modified polyvinyl alcohol polymers are prepared according to the mass percentage of raw materials Made: carboxy-modified polyvinyl alcohol 39%, water 60%, polyacrylate defoamer 1%;

[0111] 2) Mix 5.2 parts of ramie fiber, 1000 parts of gravel, 710 parts of sand, 400 parts of cement, 95 parts of fly ash, 40 parts of straw ash, 20 parts of silica fume, 4 parts of nano silicon, 8.6 parts of basalt fiber, 17.6 parts of CaCO 3 Whiskers were divided into three parts, and then a part of ramie fiber, basalt fiber, CaCO 3 Sprinkle the whiskers evenly in th...

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Abstract

The invention discloses a high-strength fiber concrete with high toughness and high cohesiveness C100 strength and a preparation method thereof. The mixing ratio includes: cement: sand: crushed stone: fly ash: straw ash: silica fume: nano silicon: water: water reducing Agent: activator: defoamer: shrinkage reducer: ramie fiber: basalt fiber: CaCO 3 Whiskers: carboxyl-modified polyvinyl alcohol polymer = 395‑405: 710: 1000: 90‑100: 40‑50: 18‑22: 2.8‑4: 130‑135: 10.5‑11: 12‑13: 1.8‑ 2.1:8‑9:5.1‑5.3:8.5‑8.7:17.5‑17.7:15‑17. Through the layered stirring method, the materials are mixed evenly at intervals, and the materials are discharged, formed and maintained. The mechanical properties of the concrete and the bonding performance with the profiled steel and the impermeability of the concrete are significantly enhanced, and the cooperating ability with the profiled steel is further improved.

Description

technical field [0001] The invention belongs to the field of building materials, and is a kind of ramie fiber, basalt fiber, CaCO 3 Whiskers, carboxyl-modified polyvinyl alcohol polymers, straw ash, fly ash, silica fume, and nano-silicon concrete with high toughness, high cohesion, high durability, and high volume stability, specifically related to a High-strength fiber concrete with high toughness and high cohesiveness C100 strength and a preparation method thereof. Background technique [0002] In structural design, considering the requirements of use function, component stiffness and convenient construction, it is usually necessary to use different grades of concrete for different stress situations to meet the required compressive, flexural and splitting tensile strength of the component when it is loaded. And to ensure the bond strength of concrete and steel working together. Concrete materials with different grades have different modulus of elasticity and different de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/50C04B2201/52C04B14/02C04B14/06C04B14/383C04B14/4643C04B18/08C04B18/101C04B18/248C04B18/146C04B22/02C04B22/124C04B22/143C04B24/2623C04B24/122C04B2103/302C04B2103/0068C04B2103/50
Inventor 郑山锁张艺欣阮升明铭温桂峰刘华王斌贺金川董晋琦尚志刚段培亮郑捷李磊董立国
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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