Formula and application method for filling cementing material

A cementing material and formula technology, applied in cement production, etc., can solve problems such as unreasonable economic prospects and resources, and achieve the effects of good segregation resistance, good fluidity, and low heat of hydration

Inactive Publication Date: 2018-06-12
临沂会宝岭铁矿有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] From the point of view of sustainable development, the rational development of mineral resources should be aimed at the overall human resources, that is, contemporary resources that can be developed and utilized under the existing technological level and economic environment and cannot be exploited under the existing technological level, or even if they can be exploited Utilize, but economically unreasonable prospect resources

Method used

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  • Formula and application method for filling cementing material

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Experimental program
Comparison scheme
Effect test

Embodiment

[0036] Embodiment (select different water-cement ratio materials successively, carry out strength test structure after mixing)

[0037] Embodiment range: (1:2~1:32)

[0038] The specific implementation is as follows:

[0039] A filling cement formula, the filling cement formula uses slag and other active materials as raw materials, and its main chemical components are SiO 2 、AI 2 0 3 , Fe 2 0 3 , CaO, MgO, SO 3 ; Concrete raw materials are as follows:

[0040] Blast furnace slag; content: 80.2%;

[0041] Cement clinker; content: 15.01%;

[0042] Gypsum; content: 3.63%;

[0043] Solid water glass; content: 0.65%;

[0044] Early strength agent; content: 0.51%.

[0045] The early strength agent is a mixture of one or more combinations of Na2CO3, NaNO2, Na2SO4 or NaCl.

[0046] The solid water glass is obtained by quantitatively weighing quartz sand and soda ash according to a certain proportion, mixing them with a mixer, smelting at a high temperature, and cooling.

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Abstract

The invention discloses a formula and application method for a filling cementing material. The formula for the filling cementing material adopts slag and other active materials as raw materials, and main chemical components of the formula comprise SiO2, Al2O3, Fe2O3, CaO, MgO and SO3; the formula comprises the following specific raw materials of: 80.2% of the slag, 15.01% of cement clinker, 3.63%of gypsum, 0.65% of solid sodium silicate and 0.51% of an early strength agent. The formula has the following advantages that the filling strength is high, the mortar strength of the cementing material is high, and after tests are conducted, flexural strength, compressive strength and the like can reach standards of P.O 42.5 ordinary cement; it is shown by actual application results that the cementing material has strong cementation ability for fine-grained tailings, and when the same cement-sand ratio and filling concentration are adopted, the filling strength of the filling cementing material is 40-60% higher than that of ordinary cement.

Description

technical field [0001] The invention relates to the technical field of mine filling materials, in particular to a filling cement formula and a using method thereof. Background technique [0002] With the continuous development of our mining industry and the continuous strengthening of environmental resource protection, more and more mines have adopted the filling mining method, and the cement, as one of the main materials of the filling mining method, occupies an important position. The solidification time and strength of the filling body are important factors affecting the mining cycle, ore loss and dilution rate, and the filling cost directly affects the economic benefits of the ore. At present, the vast majority of ore underground mining filling uses tailings as aggregate and cement as cementing material for underground filling, and there are still many deficiencies. Such as small water-cement ratio, high lime-sand ratio, poor fluidity of the mixture during high-concentr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/153C04B28/08
CPCC04B7/1535C04B28/08C04B18/12C04B14/06Y02P40/10
Inventor 曹广海
Owner 临沂会宝岭铁矿有限公司
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