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Mud-containing concrete and preparation method thereof

A technology of concrete and silt, applied in the field of concrete, can solve problems such as ecological damage and impact on the ecological environment, and achieve the effects of reducing consumption, reducing production costs, large market promotion value and application prospects

Inactive Publication Date: 2019-08-23
刘群
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of cement concrete preparation, a large amount of natural sand and gravel need to be used, but these resources are non-renewable resources. Long-term mining and use of natural sand and gravel will cause the gradual reduction of these non-renewable resources, and even It will affect the ecological environment and cause irreversible damage to the ecology

Method used

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  • Mud-containing concrete and preparation method thereof
  • Mud-containing concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A method for preparing concrete containing silt, comprising the following steps:

[0041] a. Weigh by mass percentage: 15% cement, 20% sludge, 3% fly ash, 40% basalt gravel, 15% river sand, 0.09% polypropylene fiber, 0.25% water reducer, 3% nano reinforcement , the balance is water;

[0042] b. Add the water reducing agent into the water and stir for 5 minutes at a speed of 300r / min and mix evenly to obtain a mixed solution; add cement, silt, fly ash, basalt gravel, river sand, polypropylene fiber, and nano-reinforcing agent into the concrete mixer Stir at a speed of 90r / min for 2 minutes to mix evenly, then add the mixture, and continue to stir at a speed of 90r / min for 2 minutes.

[0043] The cement is Portland cement.

[0044] The silt is river bottom silt.

[0045] The grain size of the basalt gravel is 6mm.

[0046] The water reducer is a polycarboxylate water reducer.

[0047] The nano reinforcement is modified nano mesoporous silica.

[0048] The modified n...

Embodiment 2

[0051] A method for preparing concrete containing silt, comprising the following steps:

[0052] a. Heat the sludge to 95°C for 15 minutes, then add 0.5% zinc oxide by weight of the sludge, and mix at a speed of 900r / min for 15 minutes to obtain pretreated sludge;

[0053] b. Weighing by mass percentage: 15% cement, 20% pretreated sludge, 3% fly ash, 40% basalt crushed stone, 15% river sand, 0.09% polypropylene fiber, 0.25% water reducer, nano reinforcement 3%, the balance is water;

[0054] c. Add the water reducer to the water and stir for 5 minutes at a speed of 300r / min to mix evenly to obtain a mixed solution; add cement, pretreated sludge, fly ash, basalt gravel, river sand, polypropylene fiber, and nano-reinforcing agent to the concrete Stir in a mixer at a speed of 90r / min for 2 minutes to mix evenly, then add the mixture, and continue to stir at a speed of 90r / min for 2 minutes.

[0055] The cement is Portland cement.

[0056] The silt is river bottom silt.

[005...

Embodiment 3

[0063] A method for preparing concrete containing silt, comprising the following steps:

[0064] a. Heat the sludge to 95°C and keep it warm for 15 minutes, then mix it at a speed of 900r / min for 15 minutes to obtain pretreated sludge;

[0065] b. Weighing by mass percentage: 15% cement, 20% pretreated sludge, 3% fly ash, 40% basalt crushed stone, 15% river sand, 0.09% polypropylene fiber, 0.25% water reducer, nano reinforcement 3%, the balance is water;

[0066] c. Add the water reducer to the water and stir for 5 minutes at a speed of 300r / min to mix evenly to obtain a mixed solution; add cement, pretreated sludge, fly ash, basalt gravel, river sand, polypropylene fiber, and nano-reinforcing agent to the concrete Stir in a mixer at a speed of 90r / min for 2 minutes to mix evenly, then add the mixture, and continue to stir at a speed of 90r / min for 2 minutes.

[0067] The cement is Portland cement.

[0068] The silt is river bottom silt.

[0069] The grain size of the basa...

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Abstract

The invention discloses a mud-containing concrete and a preparation method thereof. The preparation method comprises the following steps: a, weighing all raw materials; and b, adding a water reducingagent to water, performing stirring for uniform mixing to obtain a mixed solution, adding cement, mud, fly ash, crushed basalt stones, river sands, polypropylene fibers and a nano-reinforcing agent into a concrete mixer, performing stirring for uniform mixing, adding the mixed solution, and continuing stirring for uniform mixing in order to obtain the mud-containing concrete. A certain proportionof the mud is added to the formula of the concrete, and the proportioning ratio and the preparation method of the concrete are reasonably optimized by test, so the strength of the concrete is not affected, the concrete is easy to construct, the production cost is greatly reduced, and the concrete is successfully applied to roads; the mud is used as a raw material, so the use amount of the cement is reduced, and many solid wastes are used and the prepared concrete has the advantages of good workability and construction performances, environmental friendliness, great market promotion values andgreat application prospect.

Description

technical field [0001] The invention relates to a concrete, in particular to a concrete containing silt and a preparation method thereof. Background technique [0002] In 1796, "Roman cement" was born, which was fired by the British James Parker. It is a kind of brown cement made of marl. In 1842, "Portland cement" appeared again, which was cement made by the British Joseph Aspdin by mixing limestone and clay, which is the ordinary portland cement we often refer to now. Since the emergence of Portland cement, Asputin has used this cement to build the river tunnel of the River Thames in London, England, because the concrete prepared with it meets the requirements of strength and durability required by the project, and Because the raw materials are easy to collect and the cost is relatively low, especially its low energy consumption, it is widely used. At the Paris Exposition in 1867, French engineers were inspired to apply concrete to housing construction; in 1900, the use ...

Claims

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Application Information

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IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/50C04B18/0418C04B18/08C04B14/14C04B14/06C04B16/0633C04B2103/302C04B14/062
Inventor 刘群
Owner 刘群
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