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Hydraulic bag concrete using industrial solid wastes

A technology for solid waste and moulded bagged concrete, applied in the field of moulded bagged concrete, can solve the problems of residents' life and property safety hazards, safety hazards, land occupation, etc., and achieve the effect of significant hydration and gelation, improved quality and good effect.

Inactive Publication Date: 2009-06-17
ANHUI GUWEITE MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large number of stockpiled tailings not only occupy land, waste resources, and pollute the environment, but also pose great safety hazards. Tailings dams and tailings reservoir collapse accidents occur from time to time, which brings great harm to the lives and properties of surrounding residents. Great hidden danger

Method used

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  • Hydraulic bag concrete using industrial solid wastes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Stir and mix the five parts of coarse aggregate, fine aggregate, cementing material, alkali-resistant glass fiber, and water. The content (weight) range of each component is: coarse aggregate: fine aggregate: cementing material = 3:1: 1. Water: cementing material = 0.45, the measurement of alkali-resistant glass fiber is added, accounting for 4% of the weight of the cementing material, and the fiber length is 5-15 mm.

[0038] The coarse aggregate used is iron ore tailings, the particle size of which ranges from 5 to 15 mm, accounting for more than 95%, and the sulfur content and clay content of the tailings are less than 1% and 3% respectively.

[0039] The used fine aggregate is iron ore tailings, and the particle size range of the fine aggregate is 5-0.16 mm, accounting for more than 95%.

[0040] The cement used is industrial waste such as steel slag, fly ash, slag, industrial waste gypsum, and 1% Na 2 SiO 3 (The modulus is 3.26) as an alkaline activator, it is ma...

Embodiment 2

[0044] Stir and mix coarse aggregate, fine aggregate, cementing material, polypropylene fiber, water and other five parts. The content (weight) range of each component is: coarse aggregate: fine aggregate: cementing material = 3:1.5:1 , water: cementing material=0.35 (using water reducer), polypropylene fiber is added, and the added amount accounts for 0.1% of cementing material composition.

[0045] The coarse aggregate used is steel slag with a particle size ranging from 5 to 15 mm, which accounts for more than 95%, and is hot-splashed converter slag accumulated for more than one year. The basicity coefficient is 1.6, and the stability inspection is qualified.

[0046] The fine aggregate used is river sand, the particle size of fine aggregate is 5-0.16 mm, and the river sand is obtained locally.

[0047] The cement used is steel slag, a small amount of 52.5MPa Portland cement clinker, fly ash, slag, industrial waste gypsum, etc., and 1% Na 2 SiO 3 +CaCl 2 As a composite b...

Embodiment 3

[0051] Coarse aggregate: fine aggregate: cementing material = 3.5: 1: 1, water: cementing material (hereinafter referred to as "water-binder ratio") = 0.85, and the fine aggregate is 5-0.16 mm low-calcium pulverized coal accounting for more than 95% Gray slag. The additional reinforcing fiber is alkali-resistant glass fiber, the fiber length is 5-10 mm, and the added amount is 5% of the total amount of cement. The cementing material preparation process is "mixing after grinding", and the added alkaline activator is KOH, which is 1% of the cementing material. The 28-day age compressive strength of the obtained mold bag concrete sampling test meets the requirements of the C20 concrete label. Others are the same as in Example 1.

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Abstract

The invention discloses hydraulic moulded bag concrete using industrial solid waste, which is prepared by the processes of mixing crude aggregate, fine aggregate, cementing material, reinforcing fiber and water by stirring, injecting the mixture into a moulded bag, and the like, wherein weight portion and content range of the components comprise the following: 3 to 4 portions of the crude aggregate, 0.5 to 2 portions of the fine aggregate, and 1 portion of the cementing material, and the ratio of the water to the cementing material is 0.35 to 0.85; the reinforcing fiber is an additive, and the adding amount of the reinforcing fiber is 0.1 to 5 percent of the total weight of the cementing material; the crude aggregate is steel slag or tailings; the fine aggregate is tailing sand or coal ash coarse slag or river sand; and the cementing material consists of the steel slag, coal ash, silicate cement clinker, mineral slag, and alkaline excitation agent accounting for 0.1 to 3 percent of the total weight of the components, which are mixed and milled, or is formed by milling each component raw material of the cementing material and then mixing the milled raw materials. The hydraulic moulded bag concrete has the advantages of stronger construction performance, mechanical strength, underwater stability and low cost, and can be widely applied in the fields of processing, construction and the like of bank protection and dike strengthening materials for rivers, lakes and sea.

Description

technical field [0001] The invention relates to a mold bag concrete, in particular to a mold bag concrete which is used for underwater revetment and uses industrial solid waste—steel slag and tailings as the main raw materials. It can be widely used in rivers, rivers, lakes, and seas. The processing and construction of bank revetment and embankment reinforcement materials. Background technique [0002] The revetments, dikes and land reclamation projects of rivers, lakes and seas are an important part of human flood control and sustainable development. At present, my country has implemented some revetments and embankment projects in a planned and step-by-step manner every year, effectively preventing river diversions and embankment collapses. Flood and navigation hazards such as river bank collapse and river channel being blocked by silt. In these revetment and embankment works, riprap and bagged concrete play a key role. On the one hand, they form a dense protective layer w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B18/14C04B18/12C04B18/08C04B14/06
CPCC04B28/142C04B2111/74Y02W30/91C04B14/06C04B18/067C04B18/08C04B18/12C04B18/142C04B20/0048C04B20/0096C04B2103/10C04B7/02
Inventor 鲁廷桂方国标
Owner ANHUI GUWEITE MATERIAL TECH CO LTD
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