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A kind of use method of cement-based penetrating hardener

A hardening agent, cement-based technology, applied in the field of cement-based penetrating hardener, can solve the problems of ground penetration resistance, wear resistance, hardness, strength, little change, hardener can not fully penetrate, hinder the promotion and application, etc. , to achieve the effect of smooth and bright appearance, easy cleaning and treatment, and obvious treatment effect

Active Publication Date: 2018-10-23
昆明合起工贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the cement-based hardener with better effect on the market is a penetrating liquid hardener, mainly an aqueous solution of silicate (sodium, potassium, lithium), but this kind of hardener in liquid form is extremely inconvenient to transport, and The price is very expensive, which greatly hinders the popularization and application; the current conventional construction method of this type of hardener is relatively backward, which is to spray the hardener directly on the concrete surface, and most of the capillary pores on the surface are covered by laitance and dust, hardening The anti-permeability, wear resistance, hardness, strength, etc. of the ground after treatment will not be fully penetrated into the structure, and a lot of materials will be wasted in vain.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment 1: This practical example is all kinds of newly poured concrete with no polishing requirements on the surface

[0043] (1) Preparation of cement-based penetrating hardener, the raw materials are all parts by weight

[0044] Add 310 parts of 18°Bé fluosilicic acid into the reaction kettle, start the reactor agitator, add 20 parts of magnesium oxide with a content of 95% while stirring, react at normal temperature and pressure for 2.5-3 hours, release the reaction liquid, and pass through the pressure filter Machine filtration, put the filtrate back into the reaction kettle; start the reactor agitator, add 16 parts of national standard aluminum hydroxide to the reaction kettle, slowly heat to 70°C while stirring, react for 2.5-3 hours, add 15 parts National standard lithium carbonate, heated to 100°C and reacted for 1-1.5 hours; pump the reaction solution into the high-level tank, filter out a small amount of impurities with a polyester bag or polyester cloth w...

Embodiment 2

[0047] Embodiment 2: This example is aimed at the ground with polishing requirements on the surface

[0048] (1) Preparation of cement-based penetrating hardener is the same as in Example 1;

[0049] (2) Apply the obtained cement-based penetrating hardener to the concrete floor, the method is as follows:

[0050] The ground that requires polishing on the surface, such as newly poured concrete, corundum, terrazzo, etc., requires the design compressive strength to be greater than C25, and the surface is smoothed and plastered with a concrete trowel. Above, make the surface fully dry, remove surface sundries, oil stains, etc., and then rinse with water, depending on the strength of the ground, use 50-200# resin grinding discs to add water at a uniform speed and cross-grind until the surface is smooth and the capillary pores are exposed, and then use a water suction machine Absorb all the mud, then rinse with water, absorb the sewage, and let the ground dry naturally; add water t...

Embodiment 3

[0051] Embodiment Three: This embodiment is for the ground that has been constructed for more than three years

[0052] (1) Preparation of cement-based penetrating hardener is the same as in Example 1;

[0053] (2) Apply the obtained cement-based penetrating hardener to the concrete floor, the method is as follows:

[0054] For the treatment of old concrete such as sanding, dusting, powdering, and sanding on the mortar floor, road dock, and factory floor that have been constructed for more than three years, check the foundation before construction, wash off the floating dust and impurities on the surface with clean water, and use a wire brush for attachments Clean, use grinder, milling machine to trim the flatness of ground as far as possible, crack application special mortar is trimmed, ventilate and dry under natural condition 1-2 days and can grind, all the other are with embodiment one. After the heavily sanded ground is treated, the overall strength, hardness, compactnes...

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Abstract

The invention discloses a use method of a cement-based permeable hardener. The cement-based permeable hardener is prepared from fluosilicic acid, magnesia, aluminum hydroxide and lithium carbonate. The permeable hardener is used after being dissolved in water, and the concrete use method of the permeable hardener comprises the following steps: removing surface impurities, grinding ground with a resin abrasive disc until the ground surface is flat, cleaning dusts to completely expose capillary pores in a structure, spraying the liquid cement-based permeable hardener on the ground to realize saturated absorption of the ground, and using the ground 24h later. The method has the advantages of wide application range, scientific and reasonable property, obvious treatment effect; ground treated with the method has the advantages of obviously increased hardness and strength, smooth and bright appearance, easiness in cleaning, long service life, and no need of special curing; and the overall use cost of the cement-based permeable hardener is low.

Description

technical field [0001] The invention relates to a method for using a hardener, in particular to a method for using a cement-based penetrating hardener. Background technique [0002] Cement-based hardener is a new type of admixture that can improve the surface properties of concrete and cement products, and belongs to the concrete surface treatment agent. Cement-based hardeners are applied to cement concrete substrates and cement products. Through reasonable processes, the concrete structure can be brightened. Moreover, surface treatment can improve the curing conditions of concrete, improve the durability of concrete, and eliminate surface cracks. [0003] At present, the cement-based hardener with better effect on the market is a penetrating liquid hardener, mainly an aqueous solution of silicate (sodium, potassium, lithium), but this kind of hardener in liquid form is extremely inconvenient to transport, and The price is very expensive, which greatly hinders the populariz...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B41/50
CPCC04B41/5072C04B41/5029C04B41/5018C04B41/501C04B41/46
Inventor 王庄陈家荣
Owner 昆明合起工贸有限公司
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