阅读说明：本技术 一种纳米微硅抗裂防水剂及其制备方法 (Nano micro-silicon anti-cracking waterproof agent and preparation method thereof ) 是由 王建国 于 2021-08-16 设计创作，主要内容包括：本发明涉及防水技术领域,公开了一种纳米微硅抗裂防水剂,包括以下重量份材料组成：沸石粉15-25份,纳米微硅粉20-35份,减水剂0.2-1.2份,膨胀剂母料0.15-0.3份,改性剂1-1.5份,憎水剂1-1.5份,高炉微粉35-50份,微珠10-20份。该纳米微硅抗裂防水剂主要由沸石粉、纳米微硅粉、微珠、微粉及助剂等非金属矿物制品组成,经焙烧、改性、表面处理后物理混合而成,利用材料本身的理化特性,在混凝土浇筑时参与到水泥的水化体系过程中,与水泥水化后产生的Ca(OH)-(2)及CaSO-(4)进行连续均匀的水化反应,生成具有早强、致密、微膨胀的双膨胀源钙矾石和水镁石可起到补偿收缩减小裂缝提高强度的作用。(The invention relates to the technical field of water prevention, and discloses a nano micro silicon anti-cracking waterproof agent which comprises the following materials in parts by weight: 15-25 parts of zeolite powder, 20-35 parts of nano-silica fume, 0.2-1.2 parts of water reducing agent, 0.15-0.3 part of expanding agent master batch, 1-1.5 parts of modifier, 1-1.5 parts of water repellent, 35-50 parts of blast furnace micro-powder and 10-20 parts of micro-beads. The nano micro silicon anti-cracking waterproof agent mainly comprises non-metallic mineral products such as zeolite powder, nano micro silicon powder, micro beads, micro powder, an auxiliary agent and the like, is formed by physical mixing after roasting, modification and surface treatment, and utilizes the physical and chemical properties of the material, and Ca (OH) is generated after the material is hydrated with cement in the process of participating in a cement hydration system when concrete is poured 2 And CaSO 4 The continuous and uniform hydration reaction is carried out to generate the double-expansion-source ettringite and brucite with early strength, compactness and micro-expansion, which can play the roles of compensating shrinkage, reducing cracks and improving strength.)

1. The nano micro silicon anti-cracking waterproof agent is characterized by comprising the following materials in parts by weight:

15-25 parts of zeolite powder, wherein,

20-35 parts of nano-micro silicon powder,

0.2 to 1.2 portions of water reducing agent,

0.15 to 0.3 portion of expanding agent master batch,

1-1.5 parts of a modifier,

1 to 1.5 portions of water repellent,

30-50 parts of blast furnace micro powder,

10-20 parts of micro-beads.

2. The nano micro silicon anti-cracking waterproof agent as claimed in claim 1, wherein the blast furnace micro powder is not less than S95 grade.

3. The nano micro silicon anti-cracking waterproof agent as claimed in claim 1, wherein: the zeolite powder is modified by a roasting method.

4. The nano micro silicon anti-cracking waterproof agent as claimed in claim 1, wherein: the water reducing agent comprises one of powdery polycarboxylic acid water reducing agent, naphthalene sulfonate water reducing agent and fatty acid high-efficiency water reducing agent.

5. A preparation method of a nano micro silicon anti-cracking waterproof agent is characterized by comprising the following steps: the zeolite powder after the qualified and modified high-quality zeolite is subjected to surface treatment, then is uniformly mixed with nano-micro silicon powder, blast furnace micro powder, micro beads, a water reducing agent, an expanding agent master batch, a modifier, a water repellent and the like through a full-automatic production line, and is packaged after surface treatment to obtain a finished product.

Technical Field

The invention relates to the technical field of building waterproofing (belonging to rigid structure self-waterproofing materials), in particular to a nano micro-silicon anti-cracking waterproofing agent and a preparation method thereof.

Background

The concrete and mortar waterproof agent is a chemical additive, is added into a cement and mortar system during the preparation of concrete, participates in the hydration reaction of cement in the preparation process of the concrete and improves the related performance of the concrete, thereby improving the impermeability, crack resistance and waterproof performance of the concrete, increasing the workability, mixing performance and fluidity, is named as an anti-seepage agent, a waterproof agent, a novel waterproof material and the like, is divided into an organic waterproof material and an inorganic waterproof material, and is a novel high-tech waterproof product. The waterproof agent has inorganic salts, polycarboxylic acids, naphthalenesulfonic acid salts, fatty acids, higher fatty acids and the like, has wide application range, simple construction and low cost, and can achieve the use effect of products required by various types and different functions of the waterproof agent.

However, the existing waterproofing agent is made of chemical product materials in production, so that the properties, land and the like of the production enterprises of the waterproofing agent are chemical classes, more and more environmental protection requirements are higher, more or less adverse effects are generated today, meanwhile, the existing waterproofing agent in the industry is generally a single-function waterproofing agent product, the national relevant standards for waterproofing additives are only JC, GB23439 and the like, and qualified products can be used in the market as long as one standard is met, so that each different waterproofing agent is determined to have certain effect, and after concrete pouring is finished, the waterproofing agent is influenced by environment, climate and the like in the slow aging process along with the time lapse, is in various aspects, needs to have the waterproofing agent with the anti-cracking performance urgently, needs to be dense and impervious, and can improve the strength of the concrete, the existing waterproof agent product is required to be used in a compounding way to meet the requirements, and the problem that various single-function waterproof agents are compatible has to be considered when a plurality of single-function waterproof agent products are used in a same hydration system in a compounding way, so that a user has to simply add and use a single waterproof agent for safety and simplicity, the leakage phenomenon of various different reasons of the existing concrete structure is caused, and the nano micro-silicon anti-cracking waterproof agent and the preparation method thereof are provided for solving the problems

Disclosure of Invention

The invention provides a nano-micro silicon anti-cracking waterproof agent and a preparation method thereof, aiming at the defects in the prior art, the nano-micro silicon anti-cracking waterproof agent has the characteristics that the anti-cracking, anti-permeability, waterproof, dampproof, anti-freezing and corrosion resistance of concrete (mortar) are obviously improved, the strength, abrasion resistance, impact resistance and durability of the concrete are obviously improved, the compression resistance, bending resistance and anti-permeability of the concrete are obviously improved, the environmental protection performance of the whole production and construction process is improved, a certain contribution can be made to environmental protection, particularly the reliability of waterproof and anti-permeability of the structure is improved, and a durable rigid structure self-waterproof system formed by compounding the nano-micro silicon anti-cracking waterproof agent and a rigid structure self-waterproof anti-cracking material can independently become a reliable national building waterproof structure to be used in building waterproof design and construction.

The invention provides the following technical scheme: a nano micro silicon anti-cracking waterproof agent comprises the following materials in parts by weight:

15-25 parts of zeolite powder, wherein,

20-35 parts of nano-micro silicon powder,

0.2 to 1.2 portions of water reducing agent,

0.15 to 0.3 portion of expanding agent master batch,

1-1.5 parts of a modifier,

1 to 1.5 portions of water repellent,

30-50 parts of blast furnace micro powder,

10-20 parts of microbeads.

Preferably, the blast furnace micropowder is blast furnace micropowder with grade not lower than S95.

Preferably, the zeolite powder is modified by a roasting method.

Preferably, the water reducing agent comprises one of a powdery polycarboxylic acid water reducing agent, a naphthalene sulfonate water reducing agent and a fatty acid high-efficiency water reducing agent.

A process for preparing the nano-class anti-cracking and water-proofing agent of microsilica includes calcining the qualified high-quality zeolite, modifying, surface treating, mixing with the microsilica, water-reducing agent, mother material of expanding agent, modifier, water repellent, blast furnace powder and microbeads, surface treating and packing.

Compared with the prior art, the invention has the following beneficial effects:

the nano micro-silicon anti-cracking waterproof agent and the preparation method thereof have the advantages of obviously improving the anti-cracking, anti-permeability, waterproof, dampproof, anti-freezing and corrosion-resistant performances of concrete (mortar), obviously improving the strength, wear resistance, impact resistance and durability of the concrete, obviously improving the compression resistance, bending resistance and anti-permeability of the concrete, improving the environmental protection performance of the whole production and construction processes, making certain contribution to environmental protection, particularly improving the reliability of waterproof and anti-permeability of the structure, and enabling a durable rigid structure self-waterproof system formed by compounding the nano micro-silicon anti-cracking waterproof agent and a rigid structure self-waterproof anti-cracking material to be independently reliable in the national building waterproof structure for building waterproof design and construction.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present disclosure clearer, technical solutions of the embodiments of the present disclosure are clearly and completely described, and to keep the following description of the embodiments of the present disclosure clear and concise, a detailed description of known functions and known components of the present disclosure is omitted to avoid unnecessarily obscuring the concepts of the present disclosure.

Example 1

A nano micro silicon anti-cracking waterproof agent comprises the following materials in parts by weight:

20 parts of zeolite powder, namely, zeolite powder,

25 parts of nano-micro silicon powder,

0.4 part of powdery polycarboxylic acid water reducing agent,

0.2 part of an expanding agent master batch,

1 part of a modifier, namely 1 part of a modifier,

1.5 parts of a water repellent,

40 parts of S95 blast furnace micro powder,

and 15 parts of microbeads.

A process for preparing the nano-class anti-cracking and water-proofing agent of microsilica includes calcining the qualified high-quality zeolite, modifying, surface treating, mixing with nano-class microsilica, powdered polycarboxylic acid water-reducing agent, mother material of expanding agent, modifier, water repellent, blast furnace powder and microbeads, surface treating and packing.

Example 2

A nano micro silicon anti-cracking waterproof agent comprises the following materials in parts by weight:

15 parts of zeolite powder, namely 15 parts of zeolite powder,

35 parts of nano-micro silicon powder,

1.2 parts of naphthalene sulfonate powder water reducing agent,

0.2 part of an expanding agent master batch,

1.5 parts of a modifier, namely,

1 part of a water repellent agent,

s95 blast furnace micro powder 30,

beads 20.

A process for preparing the nano-class anti-cracking and water-proofing agent of microsilica includes calcining the qualified high-quality zeolite, modifying its surface, mixing with the nano-class microsilica, naphthalene sulfonate water-reducing agent, expanding agent, modifier, water repellent, blast furnace powder and microbeads, surface treating and packing.

Example 3

A nano micro silicon anti-cracking waterproof agent comprises the following materials in parts by weight:

15 parts of zeolite powder, namely 15 parts of zeolite powder,

20 parts of nano-micro silicon powder,

1.2 parts of a fatty acid high-efficiency water reducing agent,

0.25 part of an expanding agent master batch,

1.2 parts of a modifier, namely,

1 part of a water repellent agent,

45 parts of S95 blast furnace micro powder,

20 parts of microbeads.

A process for preparing the nano-class anti-cracking and water-proofing agent of microsilica includes calcining the qualified high-quality zeolite, modifying its surface, mixing with nano-class microsilica, efficient water-reducing agent of fatty acid, mother material of expanding agent, modifier, water repellent, blast-furnace powder and microbeads, surface treating and packing.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.