阅读说明：本技术 一种高强复合材料制备工艺 (Preparation process of high-strength composite material ) 是由 肖煜 梁拓鑫 于 2021-10-27 设计创作，主要内容包括：本发明公开了一种高强复合材料制备工艺,涉及混凝土制备技术领域,一种高强复合材料制备工艺,其特征在于,包括以下步骤：步骤一：配料,高强复合材料制的配料包括水泥、硅粉、矿粉、石英砂、减水剂、钢纤维和水,将上述配料通过搅拌釜拌合均匀而得到拌合料；步骤二：高强复合材料的生产工艺；步骤三：高强复合材料的养护工艺,养护工艺包括蒸汽养护和自然养护,步骤四：产品成型,本发明中按照新的配方及制备工艺产品的强度可以达到C130,相对于传统的混凝土制品强度更高,材料用量较传统的混凝土制品用量减少30～50%,节约成本,其各项力学性能都有大幅度提高。(The invention discloses a preparation process of a high-strength composite material, which relates to the technical field of concrete preparation, and is characterized by comprising the following steps of: the method comprises the following steps: the preparation method comprises the following steps of (1) preparing ingredients, wherein the ingredients prepared from the high-strength composite material comprise cement, silicon powder, mineral powder, quartz sand, a water reducing agent, steel fibers and water, and uniformly mixing the ingredients through a stirring kettle to obtain a mixture; step two: a production process of the high-strength composite material; step three: the curing process of the high-strength composite material comprises steam curing and natural curing, and comprises the following four steps: the strength of the product can reach C130 according to the new formula and the preparation process, the product has higher strength compared with the traditional concrete product, the material consumption is reduced by 30-50% compared with the traditional concrete product, the cost is saved, and all the mechanical properties are greatly improved.)

1. A preparation process of a high-strength composite material is characterized by comprising the following steps:

the method comprises the following steps: the materials are prepared from high-strength composite materials, wherein the materials comprise cement, silicon powder, mineral powder, quartz sand, a water reducing agent, steel fibers and water, the materials are uniformly mixed through a stirring kettle to obtain a mixture, and the specific materials of all the materials are shown in the attached figure 2;

step two: a production process of the high-strength composite material; step three: forming a product;

step four: the curing process of the high-strength composite material comprises steam curing and natural curing.

2. The process for preparing a high-strength composite material according to claim 1, wherein in the first step, the silica powder, the mineral powder, the quartz sand and the like are used for replacing sand and stones in common concrete proportioning, and a certain amount of steel fibers are additionally added.

3. The process for preparing a high-strength composite material according to claim 1, wherein in the second step, the production process comprises pouring the mixture into a mold or a pipe mold, using a vibrating rod for insertion vibration, or installing an attached vibrator outside the mold for vibration to achieve mixture compactness.

4. The process for preparing a high-strength composite material according to claim 1, wherein in the fourth step, the steam curing comprises four processes of standing still, heating, keeping constant temperature and cooling.

5. The preparation process of the high-strength composite material according to claim 1, wherein the four specific steps in the steam curing are as follows:

standing: standing the product at room temperature for 2 hr;

and (3) heating: the temperature rise period is 1.5 hours, and the temperature is gradually increased from room temperature to 65 ℃;

and (3) constant temperature: keeping the product at the constant temperature for 4 hours and keeping the temperature at 65 ℃;

cooling: and cooling for 1.5 hours, gradually cooling the temperature from 65 ℃ to room temperature, and transferring the product to a storage yard for natural curing.

6. The process for preparing a high-strength composite material according to claim 1, wherein the temperature rise and fall are slowly performed during the steam curing process while the temperature is raised and lowered.

7. The process for preparing a high-strength composite material according to claim 1, wherein the natural curing is performed by using water at room temperature above 20 ℃.

Technical Field

The invention relates to a large range, in particular to a preparation process of a high-strength composite material.

Background

Concrete is a general term for engineering composite materials formed by cementing aggregate into a whole by cementing materials, generally speaking, concrete is cement concrete which is prepared by mixing cement as the cementing material, sand and stone as the aggregate and water (which may contain additives and admixtures) according to a certain proportion and stirring, and is also called common concrete, and is widely applied to civil engineering.

The materials used in the concrete product industry at present mainly comprise cement, reinforcing steel bars, sand stones, water reducing agents, mineral (slag) powder, water and the like, and the steam curing or natural curing process is adopted, so that the strength of the concrete which can be achieved by the product is not more than C80 at most, and the product is made of more materials.

In order to reduce the material consumption of a product, reduce the weight of the product, and ensure that the product has excellent properties in various aspects such as strength, load and the like, the preparation process of the high-strength composite material is provided only by improving the material proportion, the production process and the like of the formed product.

Disclosure of Invention

1. Problems to be solved

Aiming at the problems in the prior art, the invention aims to provide a preparation process of a high-strength composite material, which is used for solving the problems mentioned in the background stories.

2. Technical scheme

In order to achieve the purpose, the invention provides the following technical scheme:

a preparation process of a high-strength composite material is characterized by comprising the following steps:

the method comprises the following steps: the materials are prepared from high-strength composite materials, wherein the materials comprise cement, silicon powder, mineral powder, quartz sand, a water reducing agent, steel fibers and water, the materials are uniformly mixed through a stirring kettle to obtain a mixture, and the specific materials of all the materials are shown in the attached figure 2;

step two: a production process of the high-strength composite material; step three: forming a product;

step four: the curing process of the high-strength composite material comprises steam curing and natural curing.

As a further scheme of the invention: in the first step, the silica powder, the mineral powder, the quartz sand and the like replace the sand and the pebble in the common concrete proportioning, and a certain amount of steel fiber is additionally added.

As a further scheme of the invention: in the second step, the production process is to pour the mixture into a mould or a pipe mould and use a vibrating rod to insert and vibrate, or install an attached vibrator outside the mould to vibrate so as to achieve the compactness of the mixture.

As a further scheme of the invention: in the fourth step, the steam curing comprises four processes of standing still, heating, constant temperature and cooling.

As a further scheme of the invention: the four steam curing processes comprise the following steps:

standing: standing the product at room temperature for 2 hr;

and (3) heating: the temperature rise period is 1.5 hours, and the temperature is gradually increased from room temperature to 65 ℃;

and (3) constant temperature: keeping the product at the constant temperature for 4 hours and keeping the temperature at 65 ℃;

cooling: and cooling for 1.5 hours, gradually cooling the temperature from 65 ℃ to room temperature, and transferring the product to a storage yard for natural curing.

As a further scheme of the invention: during the steam curing process, the temperature should be slowly increased and decreased during temperature increase and decrease.

As a further scheme of the invention: the natural curing means that the natural curing mode can be adopted when the room temperature is more than 20 ℃, and the water is added for curing.

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

1. according to the invention, the strength of the product can reach C130 according to the new formula and the preparation process, compared with the traditional concrete product, the strength is higher, the material consumption is reduced by 30-50% compared with the traditional concrete product, the cost is saved, all the mechanical properties are greatly improved, and all the detection parameters are shown in an attached figure 3 (the data in the attached figure 3 are obtained by experiments).

2. In the present invention, silica powder, mineral powder, quartz sand and steel fiber are added into the existing material, and for the mix proportion design of silica powder concrete, the optimum mixing amount of silica powder, the optimum mixing amount of water reducing agent and the adjustment of sandstone are determined according to the design requirements, so that the frost resistance, impermeability, chemical erosion resistance, steel bar erosion resistance and impact and abrasion resistance of the concrete product can be enhanced, the granulated blast furnace mineral powder can save 30-60% of cement consumption (including cement mortar), the engineering cost of cement and concrete is reduced, and simultaneously, the volcanic ash effect is achieved, the compression strength, the tensile strength, the bending strength and the shear strength of the concrete are increased, the quartz sand is a silicate mineral with hard, wear resistance and stable chemical properties, thereby enhancing the stability of the concrete product, and simultaneously adding steel fiber to make the concrete product prepared by the invention more firm and durable.

Drawings

FIG. 1 is a process flow diagram of the present invention;

FIG. 2 is a diagram showing the details of the ingredients of the present invention;

FIG. 3 is a diagram showing the improvement of various mechanical properties of the product of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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 embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

Referring to fig. 1 to 3, in an embodiment of the present invention, a process for preparing a high-strength composite material includes the following steps:

the method comprises the following steps: the preparation method comprises the following steps of (1) preparing ingredients, wherein the ingredients prepared from the high-strength composite material comprise cement, silicon powder, mineral powder, quartz sand, a water reducing agent, steel fibers and water, and uniformly mixing the ingredients through a stirring kettle to obtain a mixture; the specific materials of the ingredients are shown in figure 2;

step two: a production process of the high-strength composite material;

step three: the curing process of the high-strength composite material comprises steam curing and natural curing.

Step four: and (5) forming a product.

Further: in the first step, the silicon powder, the mineral powder, the quartz sand and the like replace common concrete proportioning medium sand and stones, and a certain amount of steel fiber is added; thereby obtaining the new formula provided by the invention, and the specific materials of all ingredients are shown in the attached figure 2.

It should be noted that: because the traditional mix proportion of common concrete is changed and special materials such as silicon powder, mineral powder, quartz sand, steel fiber and the like are added, the high strength (the strength value can reach C130) and high bearing of the product are ensured, various mechanical properties of the product are greatly improved, and the product produced by using the high-strength composite material is more convenient to transport and mount.

Further: in the second step, the production process is to pour the mixture into a mould or a pipe mould and use a vibrating rod to insert and vibrate, or install an attached vibrator outside the mould to vibrate so as to achieve the compactness of the mixture.

Further: in the third step, the steam curing comprises four processes of standing, heating, keeping constant temperature and cooling, and the product is stood at room temperature for 2 hours; the temperature rise period is 1.5 hours, and the temperature is gradually increased from room temperature to 65 ℃; keeping the product at the constant temperature for 4 hours and keeping the temperature at 65 ℃; and cooling for 1.5 hours, gradually cooling from 65 ℃ to room temperature, transferring the product to a storage yard for natural maintenance, wherein the temperature is slowly increased and decreased during temperature increase and decrease in the steam maintenance process, and cannot be too fast, otherwise, the surface of the product is cracked in the maintenance process, and the appearance quality of the product is influenced.

Further: the natural curing means that the natural curing mode can be adopted when the room temperature is more than 20 ℃, and the water is added for curing.

It should be noted that: the high-strength composite material in the invention refers to a concrete product, the strength of the product can reach C130 according to a new formula and a preparation process, compared with the traditional concrete product, the strength is higher, the material consumption is reduced by 30-50% compared with the traditional concrete product, the cost is saved, various mechanical properties are greatly improved, and various detection parameters are shown in figure 3 (data in figure 3 are obtained through experiments).

In the invention, the main materials are sand and stone, while the invention adds silica powder, mineral powder, quartz sand and steel fiber into the existing prepared material, the mix proportion design of the silica powder concrete is mainly based on the design requirement, the adding method of silica powder, the best adding quantity of water reducing agent and the adjustment of sand stone are determined, the adding of silica powder can enhance the frost resistance, impermeability, chemical erosion resistance, steel bar erosion resistance and abrasion resistance of the concrete product, the blast furnace mineral powder can save 30-60% of cement consumption (including cement mortar), reduce the engineering cost of cement and concrete, simultaneously has the volcanic ash effect, increases the compression strength, tensile strength, bending strength and shear strength of concrete, the quartz sand is a silicate mineral with hard, wear resistance and stable chemical performance, thereby enhancing the stability of the concrete product, and simultaneously adding steel fiber to make the concrete product prepared by the invention more firm and durable.

Meanwhile, silicon powder, mineral powder, quartz sand and steel fiber replace part of sand and stones, so that the using amount of the sand and the stones can be reduced, a large amount of materials are saved, and meanwhile, the cost is saved.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.