Pervious concrete reinforcing agent

A permeable concrete and reinforcing agent technology, applied in the field of concrete, can solve the problems of loss of permeable concrete, limited improvement of compressive strength of permeable concrete, etc.

Pending Publication Date: 2021-09-07
XIAMEN MEIYI GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned related technologies, the inventor believes that the reinforcing agent currently used usually loses the porosity of the pervious concrete to increase the compressive strength, and the improvement of the compressive strength of the pervious concrete is limited, so there is still room for improvement

Method used

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  • Pervious concrete reinforcing agent

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] This embodiment discloses a reinforcing agent for permeable concrete, which is prepared by the following steps:

[0049] Step 1), adding water and surfactant accounting for 20% of the total mass of water into the mixer and stirring for 3 minutes at a speed of 60 r / min to obtain the first mixed solution;

[0050] Step 2), add remaining water, calcium nitrate, calcium nitrite, ferrous chloride, sodium nitrate and auxiliary agent into the mixer and stir for 5min, the stirring speed is 80r / min, to obtain the second mixed solution;

[0051] Step 3), add microsilica fume to the mixer and continue stirring for 10 minutes at a speed of 120r / min to obtain a reinforcing agent for permeable concrete.

Embodiment 2

[0053] This embodiment discloses a reinforcing agent for permeable concrete, which is prepared by the following steps:

[0054] Step 1), adding water and surfactant accounting for 25% of the total mass of water into the mixer and stirring for 4 minutes at a speed of 70 r / min to obtain the first mixed solution;

[0055] Step 2), add remaining water, calcium nitrate, calcium nitrite, ferrous chloride, sodium nitrate and auxiliary agent into the mixer and stir for 8min, stirring speed 100r / min, to obtain the second mixed solution;

[0056] Step 3), add microsilica fume to the mixer and continue stirring for 13 minutes at a speed of 135r / min to obtain a reinforcing agent for permeable concrete.

Embodiment 3

[0058] This embodiment discloses a reinforcing agent for permeable concrete, which is prepared by the following steps:

[0059] Step 1), adding water and surfactant accounting for 30% of the total mass of water into the mixer and stirring for 5 minutes at a speed of 80 r / min to obtain the first mixed solution;

[0060] Step 2), adding remaining water, calcium nitrate, calcium nitrite, ferrous chloride, sodium nitrate and additives into the mixer and stirring for 10min, stirring speed 120r / min, to obtain the second mixed solution;

[0061] Step 3), add microsilica fume to the mixer and continue stirring for 15 minutes at a speed of 150r / min to obtain a reinforcing agent for permeable concrete.

[0062] The component input amount of embodiment 1-3 is shown in Table 1, unit: Kg.

[0063] Table 1

[0064]

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Abstract

The invention relates to the field of concrete, and particularly discloses a pervious concrete reinforcing agent which comprises the following components in parts by mass: 50 parts of water, 4.5 to 8 parts of calcium nitrate, 3.6 to 6.8 parts of calcium nitrite, 2 to 5 parts of ferrous chloride, 1.8 to 4.6 parts of micro silicon powder, 1.5 to 3.5 parts of sodium nitrate, 1.2 to 1.4 parts of a surfactant, and 0.8 to 1.6 parts of an auxiliary agent. The preparation method comprises the following steps of uniformly mixing and stirring the water accounting for 20-30% of the total mass of the water and the surfactant, then adding the calcium nitrate, the calcium nitrite, the ferrous chloride, the sodium nitrate, the auxiliary agent and the residual water, uniformly stirring, finally adding the micro silicon powder, and continuously uniformly stirring to obtain the reinforcing agent for the pervious concrete. The reinforcing agent has the advantage that the compressive strength of the pervious concrete is improved to a greater extent on the premise of ensuring the porosity of the pervious concrete.

Description

technical field [0001] The application relates to the field of concrete, more specifically, it relates to a reinforcing agent for permeable concrete. Background technique [0002] Sponge city is a new generation of urban stormwater management concept. It means that the city can be like a sponge and has good elasticity in adapting to environmental changes and dealing with natural disasters caused by rainwater. It can also be called "water elastic city". The concrete pavement leads to the lack of groundwater in the city, which affects the ecological system on the ground, makes the water ecology unable to circulate normally, breaks the balance of the urban ecological balance, and affects the normal growth of vegetation. [0003] Under the new situation, the sponge city is an innovative expression of promoting the construction of green buildings, the development of low-carbon cities, and the formation of smart cities. In the sponge city, the water permeability of the permeable ...

Claims

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Application Information

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IPC IPC(8): C04B24/16C04B18/08C04B18/14C04B22/08C04B22/12
CPCC04B40/0039C04B22/085C04B22/12C04B18/146C04B18/08C04B22/002C04B24/10C04B24/16C04B14/383Y02W30/91
Inventor 伍根伙李仰根肖益春肖作锐
Owner XIAMEN MEIYI GRP CO LTD
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