阅读说明：本技术 一种含有防冻剂的混凝土及其制备方法 (Concrete containing antifreezing agent and preparation method thereof ) 是由 柴瑞龙 于 2019-10-23 设计创作，主要内容包括：本发明公开了一种含有防冻剂的混凝土,每立方米的防冻混凝土由以下配比的原料组成：水100～120kg、水泥200～300kg、赤泥80～90kg、人工砂30～45kg、硅藻泥粉料200～400kg、中砂500～550kg、碎石150～200kg、防冻剂7～9kg、金刚砂50～80g。该防冻混凝土,能够增加混凝土的抗冻性能,适用范围更广。其制备方法为：步骤1,按照上述原料的配比备料,步骤2、将自来水总量的70％、水泥、赤泥、人工砂以及硅藻泥粉料倒入混凝土搅拌机；步骤3、将中砂、碎石倒入搅拌机；步骤4、加入金刚砂,步骤5、把防冻剂用与剩余的30％自来水混合后,倒入搅拌机,随后搅拌60s,即得。(The invention discloses concrete containing an antifreezing agent, wherein each cubic meter of the antifreezing concrete consists of the following raw materials in parts by weight: 100-120 kg of water, 200-300 kg of cement, 80-90 kg of red mud, 30-45 kg of artificial sand, 200-400 kg of diatom ooze powder, 500-550 kg of medium sand, 150-200 kg of broken stone, 7-9 kg of anti-freezing agent and 50-80 g of carborundum. The antifreezing concrete can increase the antifreezing performance of the concrete, and has wider application range. The preparation method comprises the following steps: step 1, preparing materials according to the proportion of the raw materials, and step 2, pouring 70% of the total amount of tap water, cement, red mud, artificial sand and diatom ooze powder into a concrete mixer; step 3, pouring the medium sand and the broken stones into a stirrer; and 4, adding carborundum, and 5, mixing the antifreezing agent with the rest 30% tap water, pouring into a stirrer, and stirring for 60s to obtain the antifreezing agent.)

1. The concrete containing the antifreezing agent is characterized in that each cubic meter of the antifreezing concrete consists of the following raw materials in percentage by weight:

100-120 kg of water, 200-300 kg of cement, 80-90 kg of red mud, 30-45 kg of artificial sand, 200-400 kg of diatom ooze powder, 500-550 kg of medium sand, 150-200 kg of broken stone, 7-9 kg of anti-freezing agent and 50-80 g of carborundum.

2. The concrete containing the antifreeze as set forth in claim 1, wherein the antifreeze is a mixture of methanol, polyacrylamide, ethanol, sodium sulfosuccinate, sodium nitrite and boric acid, and the mass ratio of methanol, polyacrylamide, ethanol, sodium sulfosuccinate, sodium nitrite and boric acid is 6: 3: 4: 3: 1: 0.5-1.

3. The preparation method of the concrete containing the antifreezing agent is characterized by comprising the following steps:

step 1, preparing materials according to the following mixture ratio of raw materials,

the concrete per cubic meter is composed of the following raw materials in proportion:

100-120 kg of water, 200-300 kg of cement, 80-90 kg of red mud, 30-45 kg of artificial sand, 200-400 kg of diatom ooze powder, 500-550 kg of medium sand, 150-200 kg of broken stone, 7-9 kg of anti-freezing agent and 50-80 g of carborundum;

step 2, pouring 70% of the total amount of tap water, cement, red mud, artificial sand and diatom ooze powder into a concrete mixer, and stirring for 30-50 s;

step 3, pouring the medium sand and the broken stone into a stirrer, and stirring for 20-30 s;

step 4, adding carborundum and stirring for 30 s;

and 5, mixing the antifreezing agent with the rest 30% tap water, pouring into a stirrer, and stirring for 60s to obtain the antifreezing agent.

4. The concrete containing the antifreeze as set forth in claim 3, wherein the antifreeze is a mixture of methanol, polyacrylamide, ethanol, sodium sulfosuccinate, sodium nitrite and boric acid.

5. The concrete containing the antifreeze as set forth in claim 4, wherein the mass ratio of methanol, polyacrylamide, ethanol, sodium sulfosuccinate, sodium nitrite and boric acid is 6: 3: 4: 3: 1: 0.5-1.

Technical Field

The invention belongs to the technical field of concrete preparation, and particularly relates to concrete containing an antifreezing agent; the invention also relates to a preparation method of the concrete containing the antifreezing agent.

Background

The duration in winter is long in northern China and Qinghai-Tibet plateau areas, and along with the development of engineering construction, long cold temperature brings a plurality of problems to concrete winter construction. In winter concrete construction, because the temperature of concrete is different from the outside temperature, heat exchange can be generated between the concrete and the ambient temperature, when the ambient temperature is very low, the temperature of the concrete can be quickly reduced by the heat exchange, for fresh concrete, the speed of temperature reduction determines the hydration temperature, the faster the temperature reduction is, the slower the strength of the concrete is increased, when the concrete is frozen too early, the strength can not be increased, the free moisture in the concrete is also higher, the frozen expansive force is larger, and the concrete is easy to damage.

At present, most of the concrete in the market is antifreezing, and the concrete antifreezing agent is also abundant, but most of the concrete antifreezing agent is high in cost, the antifreezing effect is not obvious, and the preparation method is complicated.

Disclosure of Invention

The invention aims to provide concrete containing an antifreezing agent, which can increase the freezing resistance of the concrete and has wider application range.

Another object of the present invention is to provide a method for preparing concrete containing an antifreeze.

The technical scheme adopted by the invention is that the concrete containing the antifreezing agent comprises the following raw materials in parts by weight per cubic meter:

100-120 kg of water, 200-300 kg of cement, 80-90 kg of red mud, 30-45 kg of artificial sand, 200-400 kg of diatom ooze powder, 500-550 kg of medium sand, 150-200 kg of broken stone, 7-9 kg of anti-freezing agent and 50-80 g of carborundum.

The present invention is also characterized in that,

the antifreezing agent is a mixture of methanol, polyacrylamide, ethanol, sodium sulfosuccinate, sodium nitrite and boric acid, and the mass ratio of the methanol, the polyacrylamide, the ethanol, the sodium sulfosuccinate, the sodium nitrite and the boric acid is 6: 3: 4: 3: 1: 0.5-1.

The other technical scheme adopted by the invention is as follows:

a preparation method of concrete containing an antifreezing agent comprises the following steps:

step 1, preparing materials according to the following mixture ratio of raw materials,

the concrete per cubic meter is composed of the following raw materials in proportion:

100-120 kg of water, 200-300 kg of cement, 80-90 kg of red mud, 30-45 kg of artificial sand, 200-400 kg of diatom ooze powder, 500-550 kg of medium sand, 150-200 kg of broken stone, 7-9 kg of anti-freezing agent and 50-80 g of carborundum;

step 2, pouring 70% of the total amount of tap water, cement, red mud, artificial sand and diatom ooze powder into a concrete mixer, and stirring for 30-50 s;

step 3, pouring the medium sand and the broken stone into a stirrer, and stirring for 20-30 s;

step 4, adding carborundum and stirring for 30 s;

and 5, mixing the antifreezing agent with the rest 30% tap water, pouring into a stirrer, and stirring for 60s to obtain the antifreezing agent.

The present invention is also characterized in that,

the antifreezing agent is a mixture of methanol, polyacrylamide, ethanol, sodium sulfosuccinate, sodium nitrite and boric acid.

The mass ratio of the methanol to the polyacrylamide to the ethanol to the sodium sulfosuccinate to the sodium nitrite to the boric acid is 6: 3: 4: 3: 1: 0.5-1.

The antifreezing concrete has the beneficial effects that the antifreezing concrete is longer in service life, is suitable for construction in a low-temperature environment, is harmless and is lower in price; the preparation method is simple to operate and easy to construct.

Detailed Description

The present invention will be described in detail with reference to the following embodiments.

The invention provides concrete containing an antifreezing agent, wherein each cubic meter of the antifreezing concrete consists of the following raw materials in parts by weight:

100-120 kg of water, 200-300 kg of cement, 80-90 kg of red mud, 30-45 kg of artificial sand, 200-400 kg of diatom ooze powder, 500-550 kg of medium sand, 150-200 kg of broken stone, 7-9 kg of anti-freezing agent and 50-80 g of carborundum.

The antifreezing agent is a mixture of methanol, polyacrylamide, ethanol, sodium sulfosuccinate, sodium nitrite and boric acid, and the mass ratio of the methanol, the polyacrylamide, the ethanol, the sodium sulfosuccinate, the sodium nitrite and the boric acid is 6: 3: 4: 3: 1: 0.5-1.

The invention provides a preparation method of the concrete containing the antifreezing agent, which comprises the following steps:

step 1, preparing materials according to the following mixture ratio of raw materials,

the concrete per cubic meter is composed of the following raw materials in proportion:

100-120 kg of water, 200-300 kg of cement, 80-90 kg of red mud, 30-45 kg of artificial sand, 200-400 kg of diatom ooze powder, 500-550 kg of medium sand, 150-200 kg of broken stone, 7-9 kg of anti-freezing agent and 50-80 g of carborundum;

step 2, pouring 70% of the total amount of tap water, cement, red mud, artificial sand and diatom ooze powder into a concrete mixer, and stirring for 30-50 s;

step 3, pouring the medium sand and the broken stone into a stirrer, and stirring for 20-30 s;

step 4, adding carborundum and stirring for 30 s;

and 5, mixing the antifreezing agent with the rest 30% tap water, pouring into a stirrer, and stirring for 60s to obtain the antifreezing agent.

The antifreezing agent is a mixture of methanol, polyacrylamide, ethanol, sodium sulfosuccinate, sodium nitrite and boric acid.

The mass ratio of the methanol to the polyacrylamide to the ethanol to the sodium sulfosuccinate to the sodium nitrite to the boric acid is 6: 3: 4: 3: 1: 0.5-1.