阅读说明：本技术 一种混凝土仿木构件制作方法 (Method for manufacturing concrete wood-like component ) 是由 沈欣 陶义 蔡圆圆 于 2021-07-29 设计创作，主要内容包括：本发明涉及一种混凝土仿木构件制作方法,方法步骤为：选取组合定型钢板,通过组合调试对组合定型钢板的各模块各线条进行校准,并经磨平调直,使直顺度控制在1mm以内；架设组合定型钢板形成仿木构件模板,对仿木构件模板进行混凝土浇筑,具体分三层浇筑,第一层浇筑到仿木构件模板底部斜边下角点,第二层浇筑到斜边上角点,第三层浇筑到顶。本申请中仿木构件通过在混凝土浇筑材料中添加复合增稠剂和高粘结聚合物砂浆,以及各组分的配比不同,对混凝土成品的强度起到了促进作用,同时抗碱底漆的添加和刷涂层数对于仿木构件在户外恶劣天气下使用褪色程度也起到关键作用,在户外使用时不易损坏,同时会一直保持一定的光泽度,增加仿木构件的使用寿命。(The invention relates to a method for manufacturing a concrete wood-like member, which comprises the following steps: selecting a combined shaped steel plate, calibrating each line of each module of the combined shaped steel plate through combination debugging, and grinding and straightening to control the straightness within 1 mm; erecting the combined shaping steel plate to form the wood-like component template, carrying out concrete pouring on the wood-like component template, specifically pouring in three layers, pouring the first layer to the lower angular point of the bevel edge at the bottom of the wood-like component template, pouring the second layer to the upper angular point of the bevel edge, and pouring the third layer to the top. Imitative wooden component is through adding compound thickener and high-adhesion polymer mortar in concrete placement material in this application to and the ratio of each component is different, has played the promotion effect to the off-the-shelf intensity of concrete, and the number of piles of adding and brushing of alkali-resistant priming paint also plays the key role to imitative wooden component use degree of fading under outdoor bad weather simultaneously, and is not fragile when outdoor use, can keep certain glossiness simultaneously always, increases imitative wooden component's life.)

1. A method for manufacturing a concrete wood-like member is characterized by comprising the following steps: the method comprises the following steps:

the method comprises the following steps: selecting a combined shaped steel plate, calibrating each line of each module of the combined shaped steel plate through combination debugging, and grinding and straightening to control the straightness within 1 mm;

step two: erecting a combined shaping steel plate to form a wood-like component template, performing concrete pouring on the wood-like component template, specifically pouring the wood-like component template in three layers, wherein the first layer is poured to a lower angular point of a bevel edge at the bottom of the wood-like component template, the second layer is poured to an upper angular point of the bevel edge, and the third layer is poured to the top;

step three: removing the formwork of the wood-like member formwork, wherein the formwork removing time is determined according to the air temperature and the concrete strength;

step four: polishing the surface of the concrete obtained after the form removal, and brushing an alkali-resistant primer to form a primer layer;

step five: covering the surface of the primer layer by using the water-based wood grain paint, pulling out the wood grain texture, and forming a wood grain paint layer firmly combined with the primer layer after the water-based wood grain paint on the surface of the primer layer is completely solidified and dried;

step six: covering the surface of the wood grain paint layer with water-based varnish, forming a finish coat firmly combined with the wood grain paint layer after the water-based varnish on the surface of the wood grain paint layer is completely solidified and dried, and performing finish coat protection on the wood grain paint layer;

step seven: and brushing a layer of acrylic emulsion on the wood grain paint finish surface, and drying to obtain the concrete wood-like member.

2. The method for manufacturing a concrete wood-like member according to claim 1, wherein: in the first step, the geometric dimension error of the selected combined shaping steel plate is controlled within 2 mm.

3. The method for manufacturing a concrete wood-like member according to claim 1, wherein: in the second step, the concrete pouring material comprises a component A and a component B, wherein the component A comprises the following components in parts by weight: 350 parts of cement, 800 parts of color sand, 145 parts of water and 2-4 parts of composite thickening agent; the component B is high-adhesion polymer mortar and comprises the following components in parts by weight: 180 parts of cement, 650 parts of colored sand, 5-10 parts of redispersible latex powder and 135 parts of water, wherein in the three-layer pouring step, the component A is poured firstly, and then the component B is poured.

4. The method for manufacturing a concrete wood-like member according to claim 1, wherein: in the fourth step, the concrete operation of brushing the alkali-resistant primer is as follows: and (3) performing covering construction by adopting the water-based alkali-resistant primer for at least two times, wherein the subsequent covering construction is performed after the water-based alkali-resistant primer for the previous covering construction is completely solidified and dried.

5. The method for manufacturing a concrete wood-like member according to claim 1, wherein: and step five, before the surface of the primer layer is covered, cleaning a clean bright surface by using a palm brush, and cleaning the polished floating dust by using a rag wiping and high-pressure air gun.

6. The method for manufacturing a concrete wood-like member according to claim 1, wherein: and the covering construction in the fifth step and the sixth step is carried out by adopting a brushing, rolling or spraying mode.

7. The method for manufacturing a concrete wood-like member according to claim 1, wherein: and seventhly, after the acrylic emulsion is dried, covering and maintaining for 7 days in a wet mode by using a plastic film, and naturally maintaining for 7 days to obtain the concrete wood-like member.

Technical Field

The invention belongs to the technical field of building construction, and particularly relates to a method for manufacturing a concrete wood-like member.

Background

Concrete, as a building material with the greatest application amount, has attracted more and more attention in the decoration field due to its high strength, strong plasticity and good durability, for example: the wood-like concrete product is more and more popular with people with the unique appearance extremely similar to solid wood, and is widely applied to various garden landscapes.

The existing wood-like handrail is generally formed by assembling a plurality of wood-like piles formed by pouring concrete, but the existing pouring modes are different, the integral shape and strength of the produced concrete product are different, the wood-like handrail can not meet the requirements of different scenes, in addition, the existing wood-like coating is easy to corrode in the outdoor environment to cause poor permanence, the service life is shortened, and the biggest defect is that the wood-like coating is not completely sealed with the original main body bearing structure, the integral geometric shape is irregular, the appearance is influenced, and the integral effect is poor.

Disclosure of Invention

The invention aims to provide a method for manufacturing a concrete wood-like member, which solves the problems that the existing wood-like coating is not completely sealed with the original main body bearing structure, the overall geometric shape is irregular, the appearance is influenced and the service life is short.

The invention realizes the purpose through the following technical scheme:

a method for manufacturing a concrete wood-like member comprises the following steps:

the method comprises the following steps: selecting a combined shaped steel plate, calibrating each line of each module of the combined shaped steel plate through combination debugging, and grinding and straightening to control the straightness within 1 mm;

step two: erecting a combined shaping steel plate to form a wood-like component template, performing concrete pouring on the wood-like component template, specifically pouring the wood-like component template in three layers, wherein the first layer is poured to a lower angular point of a bevel edge at the bottom of the wood-like component template, the second layer is poured to an upper angular point of the bevel edge, and the third layer is poured to the top;

step three: removing the formwork of the wood-like member formwork, wherein the formwork removing time is determined according to the air temperature and the concrete strength;

step four: polishing the surface of the concrete obtained after the form removal, and brushing an alkali-resistant primer to form a primer layer;

step five: covering the surface of the primer layer by using the water-based wood grain paint, pulling out the wood grain texture, and forming a wood grain paint layer firmly combined with the primer layer after the water-based wood grain paint on the surface of the primer layer is completely solidified and dried;

step six: covering the surface of the wood grain paint layer with water-based varnish, forming a finish coat firmly combined with the wood grain paint layer after the water-based varnish on the surface of the wood grain paint layer is completely solidified and dried, and performing finish coat protection on the wood grain paint layer;

step seven: and brushing a layer of acrylic emulsion on the wood grain paint finish surface, and drying to obtain the concrete wood-like member.

The further improvement is that in the step one, the geometric dimension error of the selected combined shaping steel plate is controlled within 2 mm.

The further improvement lies in that in the second step, the concrete pouring material comprises a component A and a component B, wherein the component A comprises the following components in parts by weight: 350 parts of cement, 800 parts of color sand, 145 parts of water and 2-4 parts of composite thickening agent; the component B is high-adhesion polymer mortar and comprises the following components in parts by weight: 180 parts of cement, 650 parts of colored sand, 5-10 parts of redispersible latex powder and 135 parts of water, wherein in the three-layer pouring step, the component A is poured firstly, and then the component B is poured.

The further improvement is that in the fourth step, the concrete operation of brushing the alkali-resistant primer is as follows: and (3) performing covering construction by adopting the water-based alkali-resistant primer for at least two times, wherein the subsequent covering construction is performed after the water-based alkali-resistant primer for the previous covering construction is completely solidified and dried.

The further improvement is that in the fifth step, before the surface of the primer layer is covered, a clean bright surface is cleaned by a palm brush, and then the polished floating dust is cleaned by a rag wiping and high-pressure air gun.

The further improvement is that the covering construction in the fifth step and the sixth step is carried out by adopting a brushing, rolling or spraying mode.

The further improvement is that in the seventh step, after the acrylic emulsion is dried, a plastic film is used for covering and wet curing for 7 days, and then natural curing is carried out for 7 days, so that the concrete wood-like member is obtained.

The invention has the beneficial effects that: this imitative wooden component of concrete makes imitative wooden component template through combination design steel form in the manufacture process, can accelerate the production efficiency of this imitative wooden component, and whole geometric shape is neat, whole effectual, imitative wooden component in this application is through adding compound thickener and high-adhesion polymer mortar in concrete placement material, and the ratio of its each component content is different, the intensity to the concrete finished product has been played the promotion effect, the number of piles of adding and brushing of alkali-resistant priming paint also plays the key role to imitative wooden component use degree of fading under outdoor bad weather, it is not fragile when outdoor use to make it, can keep certain glossiness all the time simultaneously, increase the life of this imitative wooden component.

Detailed Description

The present application is described in further detail below, and it should be noted that the following detailed description is provided for illustrative purposes only, and is not intended to limit the scope of the present application, which is defined by the appended claims.

Example 1

A method for manufacturing a concrete wood-like member comprises the following steps:

the method comprises the following steps: selecting a combined shaped steel plate, calibrating each line of each module of the combined shaped steel plate through combination debugging, and grinding and straightening to control the straightness within 1 mm;

step two: erecting a combined shaping steel plate to form a wood-like component template, performing concrete pouring on the wood-like component template, specifically pouring the wood-like component template in three layers, wherein the first layer is poured to a lower angular point of a bevel edge at the bottom of the wood-like component template, the second layer is poured to an upper angular point of the bevel edge, and the third layer is poured to the top;

step three: removing the formwork of the wood-like member formwork, wherein the formwork removing time is determined according to the air temperature and the concrete strength;

step four: polishing the surface of the concrete obtained after the form removal, and brushing two layers of alkali-resistant primer to form a primer layer;

step five: covering the surface of the primer layer by using the water-based wood grain paint, pulling out the wood grain texture, and forming a wood grain paint layer firmly combined with the primer layer after the water-based wood grain paint on the surface of the primer layer is completely solidified and dried;

step six: covering the surface of the wood grain paint layer with water-based varnish, forming a finish coat firmly combined with the wood grain paint layer after the water-based varnish on the surface of the wood grain paint layer is completely solidified and dried, and performing finish coat protection on the wood grain paint layer;

step seven: and brushing a layer of acrylic emulsion on the wood grain paint finish surface, and drying to obtain the concrete wood-like member.

The concrete pouring material A comprises the following components in parts by weight: 200 parts of cement, 600 parts of colored sand, 120 parts of water and 2 parts of composite thickening agent; the high-adhesion polymer mortar of the component B comprises the following components in parts by weight: 120 parts of cement, 650 parts of colored sand, 5 parts of redispersible latex powder and 110 parts of water.

Example 2

A method for manufacturing a concrete wood-like member comprises the following steps:

the method comprises the following steps: selecting a combined shaped steel plate, calibrating each line of each module of the combined shaped steel plate through combination debugging, and grinding and straightening to control the straightness within 1 mm;

step two: erecting a combined shaping steel plate to form a wood-like component template, performing concrete pouring on the wood-like component template, specifically pouring the wood-like component template in three layers, wherein the first layer is poured to a lower angular point of a bevel edge at the bottom of the wood-like component template, the second layer is poured to an upper angular point of the bevel edge, and the third layer is poured to the top;

step three: removing the formwork of the wood-like member formwork, wherein the formwork removing time is determined according to the air temperature and the concrete strength;

step four: polishing the surface of the concrete obtained after the form removal, and brushing three layers of alkali-resistant primer to form a primer layer;

step five: covering the surface of the primer layer by using the water-based wood grain paint, pulling out the wood grain texture, and forming a wood grain paint layer firmly combined with the primer layer after the water-based wood grain paint on the surface of the primer layer is completely solidified and dried;

step six: covering the surface of the wood grain paint layer with water-based varnish, forming a finish coat firmly combined with the wood grain paint layer after the water-based varnish on the surface of the wood grain paint layer is completely solidified and dried, and performing finish coat protection on the wood grain paint layer;

step seven: and brushing a layer of acrylic emulsion on the wood grain paint finish surface, and drying to obtain the concrete wood-like member.

The A component of the concrete pouring material comprises the following components in parts by weight: 200 parts of cement, 600 parts of colored sand, 120 parts of water and 4 parts of composite thickening agent; the high-adhesion polymer mortar of the component B comprises the following components in parts by weight: 120 parts of cement, 650 parts of colored sand, 10 parts of redispersible latex powder and 110 parts of water.

Comparative example 1

The manufacturing method of the concrete wood-like member basically comprises the following steps of example 1, and the only difference is that: and removing the composite thickening agent and the high-bonding polymer mortar in the concrete pouring material.

Comparative example 2

The manufacturing method of the concrete wood-like member basically comprises the following steps of example 2, and the only difference is that: and changing the three-layer brushing of the alkali-resistant primer in the fourth step into the two-layer brushing.

Comparative example 3

The manufacturing method of the concrete wood-like member basically comprises the following steps of example 1, and the only difference is that: and changing the step four into the step four, namely brushing two layers of the alkali-resistant primer into brushing three layers.

In order to study the properties of the concrete wood-like members prepared in the above examples, the quality analysis of the finished products was carried out as follows:

first, quality analysis of finished product

The quality of the finished wood-like member is evaluated from the strength grade of the finished wood-like member and the fading result of the wood-like member when encountering a bleaching agent solution: (the compressive strength of concrete is obtained by tests, the cubic test piece with the side length of 150mm below the latest standard C60 strength in China is used as the standard size test piece of the compressive strength of concrete. according to the standard GB/T50081-2002 of the test method for the mechanical properties of common concrete, the cubic test piece with the side length of 150mm is manufactured, and is cured to 28d of age under the condition of standard curing (the temperature is 20 +/-2 ℃, and the relative humidity is more than 95 percent), and the ultimate compressive strength measured by the standard test method is called the compressive strength of the concrete standard cubic test piece)

As can be seen from the above table, the finished wood-like member obtained by the method of example 2 of the present invention has the best quality, which is embodied in the concrete strength of the finished product and the fading degree of the wood-like grain in the open air environment. From the results of the quality tests of the finished wood-like structures of examples 1 and 2, it can be seen that the amounts of the composite thickener and the high-adhesion polymer mortar in the concrete casting material and the alkali-resistant primer play a decisive role in the quality of the finished wood-like structures, and from comparative example 1, the composite thickener and the high-adhesion polymer mortar can increase the strength of the concrete structures; as can be seen from comparative examples 2 and 3, the three-layer alkali-resistant primer can reduce the fading degree of the wood grain paint surface on the outer layer of the wood-like member; in conclusion, the addition of the composite thickening agent and the high-adhesion polymer mortar in concrete pouring promotes the strength of a concrete finished product, the number of layers of the alkali-resistant primer plays a key role in the fading degree of the wood-like member used in outdoor severe weather, the appropriate increase of the addition amount of the composite thickening agent and the high-adhesion polymer mortar and the number of layers of the alkali-resistant primer can increase the adhesion degree of the wood-like coating and the original supporting structure, the quality of the concrete wood-like member is improved, the wood-like member is not easy to damage in outdoor use, a certain glossiness can be kept all the time, and the service life of the wood-like member is prolonged.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.