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A two-component concrete surface modification material and its preparation and use method

A technology of concrete surface and modified materials, which is applied in the field of building materials, can solve the problems of discounting the effect of modified materials, etc., and achieve the effects of good implementation effect, easy coating, and reduced surface tension

Active Publication Date: 2021-03-19
SUZHOU GUARDEX NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On the other hand, due to the gradual carbonization of the concrete surface, the calcium on the surface will gradually decrease, and the effect of using modified materials will be greatly reduced at this time.

Method used

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  • A two-component concrete surface modification material and its preparation and use method
  • A two-component concrete surface modification material and its preparation and use method
  • A two-component concrete surface modification material and its preparation and use method

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preparation example Construction

[0037] Such as figure 1Shown, a kind of preparation method of two-component concrete surface modification material comprises the steps:

[0038] Step 1: Make component A, open the reaction kettle, add deionized water, surfactant A and penetrant A into the reaction kettle in sequence, stir evenly, then add silicate solution, stir evenly again, and obtain A mixed solution;

[0039] Step 2, filtering the A mixed solution obtained in the step 1 to remove impurities in the A mixed solution to obtain the A component clear liquid;

[0040] Step 3: Make component B, open another reaction kettle, first add B deionized water, then add B surfactant and B penetrant, stir evenly, then add calcium solution, stir evenly again, and obtain B mixed solution;

[0041] Step 4: Filter the mixed solution of B obtained in step 3 to remove impurities in the mixed solution of B to obtain a clear solution of component B.

[0042] figure 2 It is a flowchart of a method for using a two-component conc...

Embodiment 1

[0051] (1) Embodiment 1: (A component: sodium silicate solution 40%, sodium dodecylbenzenesulfonate 0.1%, glycerol 1%, deionized water 58.9%; B component: calcium nitrite solution 30%, sodium dodecylbenzenesulfonate 0.03%, glycerol 0.5%, deionized water 69.47%)

[0052] Preparation of component A: measure by weight, add 58.9kg of deionized water to the reactor in sequence, then add 0.1kg of sodium dodecylbenzenesulfonate and 1kg of glycerin, stir well and then add 40kg of sodium silicate solution, Stir evenly again to obtain a mixed solution of A, and filter the mixed solution of A to remove impurities in the mixed solution of A to obtain about 100 kg of the clear liquid of component A.

[0053] Preparation of component B: measure by weight, add 69.47kg of deionized water to the reaction kettle in turn, add 0.03kg of sodium dodecylbenzenesulfonate and 0.5kg of glycerin again, stir well and then add 30kg of calcium nitrite solution , Stir evenly again to obtain the B mixed sol...

Embodiment 2

[0055] (2) Embodiment 2: (A component: sodium silicate solution 50%, sodium dodecylbenzenesulfonate 0.12%, glycerol 1.3%, deionized water 48.58%; B component: calcium nitrite solution 40%, sodium dodecylbenzenesulfonate 0.04%, glycerol 0.8%, deionized water 59.16%)

[0056] Preparation of component A: measure by weight, add 48.58kg of deionized water to the reactor in turn, then add 0.12kg of sodium dodecylbenzenesulfonate and 1.3kg of glycerol, stir well and then add 50kg of sodium silicate solution , Stir evenly again to obtain the A mixed solution, filter the A mixed solution to remove impurities in the A mixed solution, and obtain about 100 kg of the A component clear liquid.

[0057] Preparation of component B: measure by weight, add 59.16kg of deionized water to the reaction kettle in turn, add 0.04kg of sodium dodecylbenzenesulfonate and 0.8kg of glycerin again, stir well, and then add 40kg of calcium nitrite solution , Stir evenly again to obtain the B mixed solution,...

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Abstract

Relating to the technical field of building materials, the invention discloses a two-component concrete surface modification material, a preparation method and use method thereof. The two-component concrete surface modification material comprises a component A and a component B, by weight percentage, the component A comprises 30-60% of a silicate solution, 0.05-0.15% of a surfactant A, 0.5-1.5% ofa penetrant A, and 38.35-69.45% of deionized water A, and the component B comprises 20-50% of a calcium solution, 0.01-0.05% of a surfactant B, 0.3-1.0% of a penetrant B, and 48.95-79.69% of deionized water B. According to the invention, the component A serves as the reactant, the component B serves as the assistant, calcium nitrite ions enter concrete in an aqueous solution form, meet the steelbar, react with iron ions when encountering a steel bar to generate a passivation film again to protect the steel bar and prevent rusting of the steel bar, the calcium solution is added into the component B and solves the problem of few calcium ions in concrete or mortar, and for concrete or mortar with large porosity or seriously carbonized surface layer, more calcium silicate crystals can be produced to fill the pores so as to reach a best modification effect.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a two-component concrete surface modification material and a preparation and use method thereof. Background technique [0002] Water-based permeable inorganic waterproofing agent (including DPS) is based on alkali metal silicate solution, adding catalysts and additives, and mixed reaction. It has the function of permeability, capillary channels and cracks of cement mortar and concrete. waterproofing agent. Its main technical principle is that the main component silicate penetrates into the capillary channels of cement mortar or concrete, and Ca(OH) produced during the cement hydration process 2 reaction to generate water-insoluble calcium silicate hydrate gel (C-S-H), thereby blocking internal pores, closing capillary channels, increasing compactness, forming a permanent sealed waterproof layer integrated with concrete, and improving cement concrete. durability. [...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B41/68
CPCC04B41/5024C04B41/68C04B41/46C04B41/5009C04B41/455C04B41/4535
Inventor 姚国友郁金珠
Owner SUZHOU GUARDEX NEW MATERIAL TECH CO LTD
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