Concrete sealing curing agent and construction process thereof
阅读说明：本技术 一种混凝土密封固化剂及其施工工艺 (Concrete sealing curing agent and construction process thereof ) 是由 王晓东 王金镂 于 2020-04-30 设计创作，主要内容包括：本发明提供了一种混凝土密封固化剂,由50～70wt％的活性硅酸盐、10～20wt％的氟硅酸镁与氟硅酸锌的混合物、1～3wt％的氢氟酸、1～3wt％的聚和胍盐、1～3wt％的微膨胀剂、其余为水和其他助剂组成。该混凝土渗透密封固化剂是一种无色、无味、无毒、无害的新型抗菌建筑材料,以活性硅酸盐为主要成分的聚合溶液,可应用在新浇筑混凝土地面或旧地面翻新,通过充分渗透,其有效成份能迅速地与混凝土中的游离钙发生化学反应,生成结晶胶体来填充结构空隙,增加结构的致密性,使得混凝土表层形成一个坚如岩石的密封实体,极大地提高混凝土结构表层的强度和耐磨性,从而使地面永久防尘、防滑、耐磨、坚硬、抗压、抗渗、抗风化、耐化学性、光亮、环保等,延长了地面的使用寿命。(The invention provides a concrete sealing curing agent which comprises 50-70 wt% of active silicate, 10-20 wt% of a mixture of magnesium fluosilicate and zinc fluosilicate, 1-3 wt% of hydrofluoric acid, 1-3 wt% of poly-guanidine salt, 1-3 wt% of a micro-expanding agent, and the balance of water and other additives. The concrete permeable sealing curing agent is a colorless, tasteless, nontoxic and harmless novel antibacterial building material, a polymerization solution taking active silicate as a main component can be applied to newly poured concrete ground or renovated old ground, effective components of the concrete permeable sealing curing agent can rapidly and chemically react with free calcium in concrete through sufficient permeation to generate crystalline colloid to fill structural gaps, the compactness of a structure is increased, a concrete surface layer forms a sealed entity like rock, the strength and the wear resistance of the concrete structure surface layer are greatly improved, the ground is permanently dustproof, antiskid, wear-resistant, hard, pressure-resistant, anti-permeability, weathering resistance, chemical resistance, brightness, environmental protection and the like, and the service life of the ground is prolonged.)
1. The concrete sealing curing agent is characterized by comprising 50-70 wt% of active silicate, 10-20 wt% of a mixture of magnesium fluosilicate and zinc fluosilicate, 1-3 wt% of hydrofluoric acid, 1-3 wt% of poly-guanidine salt, 1-3 wt% of a micro-expanding agent, and the balance of water and other auxiliaries.
2. A concrete sealing curing agent as claimed in claim 1, wherein the active silicate is one or more of sodium silicate, potassium silicate or lithium silicate.
3. The concrete sealing curing agent according to claim 1, wherein the mixture ratio of the magnesium fluosilicate to the zinc fluosilicate is 1-5: 1.
4. the concrete sealing curing agent of claim 1, wherein the poly-guanidine salt is a polymeric mono-guanidine salt.
5. The construction process of the concrete sealing curing agent as claimed in claims 1 to 4, wherein the new terrace construction comprises the following steps:
cleaning the dirt on the ground by using a special floor cleaning machine and adding clean water;
after the ground is dried completely, spraying concrete to penetrate and seal the curing agent on the surface of the concrete so as to fully wet the concrete;
brushing the ground lightly with a brush, a squeegee or a row of slippers, and keeping the penetration for 20-30 minutes;
after the materials are infiltrated for 60 minutes and gradually become viscous, water mist is sprayed to fully dissolve the materials and react again;
according to the ground condition and the use requirement, the construction is carried out again according to the previous construction steps, so that the curing effect is stronger;
finally, removing all the stains and residual curing agent on the surface by using a rubber broom or a vacuum cleaner, and naturally drying the ground.
6. The construction process of the concrete sealing curing agent as claimed in claims 1 to 4, wherein the construction of the old terrace comprises the following steps:
the original ground is constructed with floor paint, and a grinding and gold steel head machine is adopted for polishing construction, so that the original foundation surface is exposed;
the original ground is made of cement, terrazzo, diamond grit and ground sand, and a retreading machine and a grinding disc are adopted for surface polishing treatment;
selecting a grinding sheet according to the actual situation of the ground, so that pores on the ground surface are opened, thereby facilitating the full penetration of materials;
other construction steps are the same as those of the new terrace, and special treatment is carried out according to the foundation and the use requirement of the ground.
Technical Field
The invention relates to the technical field of cement ground improving coatings, in particular to a concrete sealing curing agent and a construction process thereof.
Background
Concrete, referred to as concrete for short, is a general term for engineering composite materials in which aggregates are cemented into a whole by cementing materials, and the term concrete generally refers to cement as the cementing material and sand and stone as the aggregates; the cement concrete, also called as common concrete, obtained by mixing with water (which may contain additives and admixtures) in a certain proportion and stirring has the advantages of economy, durability, fire resistance, high pressure resistance and the like, and is widely applied to civil engineering.
In the concrete hardening process, the surface layer and the internal structure contain a large number of mutually-penetrated pores, so that the concrete structure is often difficult to resist the corrosion of corrosive substances in the environment due to poor surface quality or insufficient compactness in the service process, the accelerated degradation of the performance of the concrete structure is caused, and the durability and the service life of the concrete structure are reduced. Aiming at the defects of concrete, the prior art generally adopts a concrete sealing curing agent to treat a concrete structure.
Concrete sealing and curing agent, also known as liquid hardener or concrete sealing agent. The inorganic concrete ground hardener in the current market mainly comprises three products: the first type is a sodium salt product with sodium silicate as a main component, which can preferentially improve the strength and the wear resistance of concrete, but has poor durability and is easy to cause efflorescence to influence the later terrace effect; the second kind is potassium-based salt product with potassium silicate as main component, and its performance is not obviously improved compared with sodium-based salt; the third category is lithium-based salt products based on lithium silicate, most of which are introduced from abroad, and have a remarkable sealing and hardening effect, but are imported products, so that the price is high.
Disclosure of Invention
In view of the above, the present invention is to provide a concrete sealing curing agent, which can significantly improve the strength and hydrophobicity of a concrete structure after being coated on the surface of the concrete structure, and has a certain antibacterial and antiseptic function.
The invention provides a concrete sealing curing agent which is composed of 50-70 wt% of active silicate, 10-20 wt% of a mixture of magnesium fluosilicate and zinc fluosilicate, 1-3 wt% of hydrofluoric acid, 1-3 wt% of poly-guanidine salt, 1-3 wt% of a micro-expanding agent, and the balance of water and other auxiliaries.
The active silicate is one or more of sodium silicate, potassium silicate or lithium silicate.
The mixture ratio of the magnesium fluosilicate to the zinc fluosilicate is 1-5: 1.
the poly-and guanidinium salts are polymeric monoguanidinium salts, especially hexamethyl polymeric monoguanidinium salts.
The invention also provides a construction method for applying the concrete sealing curing agent to a new terrace, which comprises the following steps:
cleaning the dirt on the ground by using a special floor cleaning machine and adding clean water;
after the ground is dried completely, spraying concrete to penetrate and seal the curing agent on the surface of the concrete so as to fully wet the concrete;
brushing the ground lightly with a brush, a squeegee or a row of slippers, and keeping the penetration for 20-30 minutes;
after the materials are infiltrated for 60 minutes and gradually become viscous, water mist is sprayed to fully dissolve the materials and react again;
according to the ground condition and the use requirement, the construction is carried out again according to the previous construction steps, so that the curing effect is stronger;
finally, removing all the stains and residual curing agent on the surface by using a rubber broom or a vacuum cleaner, and naturally drying the ground.
The invention also provides a construction method for applying the concrete sealing curing agent to an old terrace, which comprises the following steps:
the original ground is constructed with floor paint, and a grinding and gold steel head machine is adopted for polishing construction, so that the original foundation surface is exposed;
the original ground is made of cement, terrazzo, diamond grit and ground sand, and a retreading machine and a grinding disc are adopted for surface polishing treatment;
selecting a grinding sheet according to the actual situation of the ground, so that pores on the ground surface are opened, thereby facilitating the full penetration of materials;
other construction steps are the same as those of the new terrace, and special treatment is carried out according to the foundation and the use requirement of the ground.
The invention has the following advantages and beneficial effects:
the concrete sealing curing agent provided by the invention comprises 50-70 wt% of active silicate, 10-20 wt% of a mixture of magnesium fluosilicate and zinc fluosilicate, 1-3 wt% of hydrofluoric acid, 1-3 wt% of poly-guanidine salt, 1-3 wt% of micro-expansion agent, and the balance of water and other additives, wherein after the curing agent is coated on the surface of a concrete structure, the silicate and the micro-expansion agent can rapidly permeate into the concrete and react with free calcium to generate insoluble amorphous hydrated calcium silicate, so that the pores of the concrete structure are blocked, and the hardness of the concrete structure is improved. Meanwhile, the mixture of magnesium fluosilicate and zinc fluosilicate in the curing agent, hydrofluoric acid, poly and guanidine salt can form a hydrophobic antibacterial film layer on the surface of the concrete structure through synergistic action, so that the hydrophobicity and the antibacterial property of the surface of the concrete structure are improved. Experimental results show that after the surface of a concrete structure is coated with the concrete sealing curing agent provided by the invention, the Mohs hardness of the surface is higher than 7, the water absorption is lower than 0.6%, and the contact angle of liquid drops is larger than 95 degrees.
The concrete permeating and sealing curing agent is a novel colorless, tasteless, nontoxic, harmless, flame-retardant, environment-friendly and energy-saving building material, takes active silicate as a polymerization solution of a main component, can be applied to newly-poured concrete ground or old ground for renovation, and can be fully permeated, so that the effective components of the concrete permeating and sealing curing agent can rapidly and chemically react with free calcium in concrete to generate crystalline colloid for filling structural gaps, thereby increasing the compactness of the structure, enabling the concrete surface layer to form a sealing entity which is hard like rock, greatly improving the strength and the wear resistance of the concrete structure surface layer, further obtaining the impervious ground which is permanently dustproof, antiskid, wear-resistant, hard, chemical-resistant, compression-resistant, weathering-resistant, bright, environment-friendly and the like, and greatly prolonging the service life of the ground.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a concrete sealing curing agent which comprises the following components:
50-70 wt% of active silicate
10-20 wt% of mixture of magnesium fluosilicate and zinc fluosilicate
1 to 3 wt% of hydrofluoric acid
1-3 wt% of poly-and guanidine salt
1-3 wt% of micro-expanding agent
The balance of water and other auxiliary agents.
The active silicate is one or more of sodium silicate, potassium silicate or lithium silicate.
The mixture ratio of the magnesium fluosilicate to the zinc fluosilicate is 1-5: 1.
the poly-and guanidinium salts are polymeric monoguanidinium salts, especially hexamethyl polymeric monoguanidinium salts.
The invention also provides a construction method for applying the concrete sealing curing agent to a new terrace, which comprises the following steps:
cleaning the dirt on the ground by using a special floor cleaning machine and adding clean water;
after the ground is dried completely, spraying concrete to penetrate and seal the curing agent on the surface of the concrete so as to fully wet the concrete;
brushing the ground lightly with a brush, a squeegee or a row of slippers, and keeping the penetration for 20-30 minutes;
after the materials are infiltrated for 60 minutes and gradually become viscous, water mist is sprayed to fully dissolve the materials and react again;
according to the ground condition and the use requirement, the construction is carried out again according to the previous construction steps, so that the curing effect is stronger;
finally, removing all the stains and residual curing agent on the surface by using a rubber broom or a vacuum cleaner, and naturally drying the ground.
The construction on the new ground can be used immediately after the powder polishing operation at the earliest time when people can walk on the new ground without generating foot prints; however, in general, the newly-prepared concrete ground is required to be constructed after being subjected to conventional maintenance for 28 days, and meanwhile, the ground needs mechanical calendering, so that the effect of the high-grade concrete after construction is better.
The invention also provides a construction method for applying the concrete sealing curing agent to an old terrace, which comprises the following steps:
the original ground is constructed with floor paint, and a grinding and gold steel head machine is adopted for polishing construction, so that the original foundation surface is exposed;
the original ground is made of cement, terrazzo, diamond grit and ground sand, and a retreading machine and a grinding disc are adopted for surface polishing treatment;
selecting a grinding sheet according to the actual situation of the ground, so that pores on the ground surface are opened, thereby facilitating the full penetration of materials;
other construction steps are the same as those of the new terrace, and special treatment is carried out according to the foundation and the use requirement of the ground.
The concrete permeable sealing curing agent has the following advantages:
hard and wear resistant. On the ground treated by the concrete permeating and sealing curing agent, the Mohs hardness can reach 8, and the Mohs hardness is improved by 45.3%; the concrete permeating and sealing curing agent can cure various components in the concrete into a hard entity, the hardness and the compactness are increased, the wear resistance is improved by more than 3 times after the ground using the concrete permeating and sealing curing agent is cured, and the strength of the ground is continuously increased along with the increase of time.
Dustproof and antiskid. After the effective components in the concrete permeating sealing curing agent and silicate in the concrete react chemically, a dust-free and compact whole is formed on the surface of the concrete, so that concrete particles released from surface gaps are permanently controlled, and the dust-proof effect is achieved; the saline-alkali components of the common concrete ground can be separated out from the surface to cause skidding, but the concrete permeable sealing curing agent ground is different, so that a firm and compact whole is formed on the concrete surface, and the saline-alkali components can not be separated out from the surface to achieve the antiskid effect.
And (4) compression resistance and impermeability. The sample treated by the concrete permeating and sealing curing agent is enhanced by 27.3 percent compared with the untreated sample, and the breaking strength is improved by more than 3 times; the effective components in the concrete penetration sealing curing agent can effectively penetrate into the concrete and chemically react with the concrete to lock pores in the concrete, so that the permanent sealing effect on the surface of the concrete is achieved, and water, oil and other surface dirt can be effectively inhibited from entering the concrete.
Chemical resistance. The ground after the concrete infiltration sealing treatment is not damaged by battery acid, bleaching agent, hydrochloric acid liquid and ultraviolet rays, and simultaneously can effectively prevent chloride ions from passing through, prevent acid and alkali, prevent weathering and withstand various severe weather tests.
Is bright and environment-friendly. The ground treated by the concrete permeating and sealing curing agent has marble-like luster, and the longer the use, the better the glossiness; colorless, odorless, nontoxic and flame retardant novel environment-friendly green products. Can be produced and constructed at the same time, and can be quickly put into use.
In addition, after construction, the ground is not required to be waxed, and only clean water or accidentally soapy water is used for mopping the ground, so that a large amount of maintenance cost is saved; meanwhile, the constructed terrace with the concrete permeating and sealing curing agent can prolong the service life by more than 30 years. The treated surface is more conducive to the use of lacquering, waterproofing, bonding and flooring materials, as well as bonding and compatibility with any type of coating material, due to the elimination of the concrete salts that undesirably bond to the surface.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.