CN114644496B - Light ceramsite floor environment-friendly light concrete and production process thereof - Google Patents

Abstract

The application relates to light ceramsite floor environment-friendly light concrete and a production process thereof, relating to the field of building materials, wherein the light ceramsite floor environment-friendly light concrete is prepared from the following raw materials in parts by weight: 20-30 parts of ceramsite, 40-60 parts of cement, 35-45 parts of fine sand, 30-50 parts of water and 2-4 parts of water reducing agent; wherein the ceramsite is prepared from the following components in parts by weight of 1: (2-3): (4-6) light ceramsite, medium ceramsite and heavy ceramsite; the production process comprises the following steps: the method comprises the following steps: s1, weighing light-weight ceramsite, medium-size ceramsite, heavy-weight ceramsite, cement, fine sand, water and a water reducing agent in parts by weight; s2, uniformly stirring water and cement, adding the light ceramsite, the medium ceramsite and the heavy ceramsite, stirring for 20-30min, finally adding the fine sand and the water reducing agent, and continuously stirring for 10-15min to obtain a concrete finished product. This application has the segregation layering that reduces haydite among the haydite lightweight concrete, improves terrace concrete's compressive strength's effect.

Description

Light ceramsite floor environment-friendly light concrete and production process thereof

Technical Field

The application relates to the field of building materials, in particular to environment-friendly light concrete for a light ceramsite terrace and a production process thereof.

Background

The terrace is the part of the ground floor room that contacts with the soil layer. The terrace needs to have good pressure resistance as a foundation for ground load of the whole low-rise room. In the terrace engineering, concrete is usually laid firstly as a base layer, then the surface of the base layer is ground flat, and finally a surface layer is laid so as to meet the requirements of the scene on the terrace.

Lightweight concrete is one of the major families of concrete, and in recent years, research and development of lightweight concrete are very important at home and abroad, so that the lightweight concrete has wider and wider application in the field of buildings. As the ceramsite has light weight, and the surface of the ceramsite is a layer of hard shell which is ceramic or enamel, has the functions of water insulation and gas retention and endows the ceramsite with higher strength, the ceramsite often replaces gravels to prepare light concrete.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: as the ceramsite is light in weight, the phenomenon of floating of the ceramsite easily occurs in the pumping process of the prepared ceramsite lightweight concrete, so that the ceramsite lightweight concrete is separated and layered, and the compressive strength of the terrace concrete is reduced.

Disclosure of Invention

In order to reduce the segregation and layering of ceramsite in the ceramsite light concrete and improve the compressive strength of the terrace concrete, the application provides the light ceramsite terrace environment-friendly light concrete and the production process thereof.

First aspect, this application provides a light haydite terrace environmental protection light concrete, adopts following technical scheme: the environment-friendly lightweight concrete for the lightweight ceramsite terrace is prepared from the following raw materials in parts by weight: 20-30 parts of ceramsite, 40-60 parts of cement, 35-45 parts of fine sand, 30-50 parts of water and 2-4 parts of water reducing agent;

wherein the ceramsite is prepared from the following components in parts by weight of 1: (2-3): (4-6) light ceramsite, medium ceramsite and heavy ceramsite.

By adopting the technical scheme, the ceramsite is adopted to replace part of the aggregate, so that the volume weight of the concrete is reduced, and the compressive strength of the concrete can be well maintained; the light ceramsite, the medium ceramsite and the heavy ceramsite can be distributed in the concrete according to the weight of the light ceramsite, the medium ceramsite and the heavy ceramsite, so that the light ceramsite, the medium ceramsite and the heavy ceramsite are uniformly distributed in the concrete, and the segregation and layering of the ceramsite in the concrete are reduced, so that the compressive strength of the terrace concrete is improved.

Optionally, the medium-sized ceramsite comprises light-weight ceramsite, a weighting body coated on the surface of the light-weight ceramsite and a sealing layer coated on the surface of the weighting body;

the weight-adding body comprises the following components: the composite material comprises aluminum oxide, starch and water, wherein the weight ratio of the aluminum oxide to the starch to the water is 1 (1-2) to 3-4;

the seal layer comprises the following components: the adhesive comprises lac, epoxy resin and ethylenediamine, wherein the weight ratio of the lac to the epoxy resin to the ethylenediamine is 1: (2-6): (1-2). Further preferably, the weight has a thickness of 2 to 3mm.

By adopting the technical scheme, the surface of the light ceramsite is coated with the weighting body, so that the weight of the light ceramsite is increased, and the light ceramsite is not easy to float on the surface of the concrete and settle in the concrete; the starch can increase the adhesive force of the weighting body on the surface of the light ceramsite and is not easy to fall off, and the aluminum oxide coated on the surface of the light ceramsite can increase the mechanical strength of the light ceramsite and improve the compressive strength of concrete.

The lac and the epoxy resin both have the characteristics of ecological environment protection, the lac is beneficial to the adhesion between the sealing layer and the weighting body, and the ethylenediamine can reduce the curing temperature of the epoxy resin so that the epoxy resin can be cured at normal temperature; the purple glue and the epoxy resin are mixed and are insoluble in water, so that a sealing layer formed on the surface of the weighted body can prevent water from entering ceramsite during the mixing process of concrete, the water cement ratio is reduced, and the compressive strength of the concrete is improved; the epoxy resin can accelerate the solidification of the lac, so that the sealing layer has the characteristic of high temperature resistance, and the application range of the concrete is enlarged.

Optionally, the heavy ceramsite comprises medium ceramsite, sludge powder and a sealing layer coated on the surface of the weighting body, the weighting body is provided with a plurality of pores, and the sludge powder is filled in the pores. Further preferably, the thickness of the weight is 3 to 5mm.

By adopting the technical scheme, the starch can enable the weighting body to form a plurality of pores so as to facilitate the entering of sludge powder, thereby increasing the weight of the weighting body, meanwhile, the sealing layer seals the pores on the weighting body, so that the sludge powder is not easy to flow out, the quality of the heavy ceramsite is ensured to be greater than that of the medium ceramsite, and the light ceramsite, the medium ceramsite and the heavy ceramsite are better distributed in concrete.

Optionally, the weight ratio of the lac, the epoxy resin, the ethylenediamine and the nano titanium dioxide is 1: (2-6): (1-2): (0.5-0.8).

Through adopting above-mentioned technical scheme, rice titanium dioxide has the synergism with epoxy, can increase the toughness of seal, makes the difficult fracture of seal to improve the compressive strength of concrete.

Optionally, the preparation method of the medium-sized ceramsite comprises the following steps:

the method comprises the following steps: stirring and mixing aluminum oxide, water and starch uniformly to prepare a first spraying liquid;

step two: spraying the first spray liquid on light-duty ceramsite, and drying for 20-30min to obtain an intermediate;

step three: roasting the intermediate at 900-1000 deg.C for 60-70min, and cooling to obtain a preparation;

step four: heating and melting the lac, pouring the epoxy resin and the ethylenediamine, and continuously heating, stirring and uniformly mixing to obtain a second spraying liquid;

step five: and spraying the second spraying liquid on the prepared body, and cooling to obtain the medium-sized ceramsite.

Through adopting above-mentioned technical scheme, make the cladding that aggravates the body and stabilize in the surface of light-duty haydite, aggravate light-duty haydite, can impel starch pore-forming through the calcination simultaneously, make aggravate the body and produce the hole to follow-up preparation heavy-duty haydite.

The second spraying liquid is sprayed on the prepared body, so that the surface of the weighted body can be sealed, a hydrophobic structure can be formed on the surface of the weighted body, the water absorption capacity of the medium-sized ceramsite in the preparation of the concrete is reduced, the water-cement ratio is reduced, and the compressive strength of the concrete is improved

Optionally, the preparation method of the heavy-duty ceramsite comprises the following steps:

1): grinding the sludge to obtain sludge powder;

2): pouring the prepared body into the sludge powder to immerse the prepared body into the sludge powder, stirring for 30-50min, and taking out to obtain a molded body;

3): and spraying the second spraying liquid on the formed body, and cooling to obtain the heavy ceramsite.

Through adopting above-mentioned technical scheme, adopt the mud powder to get into in the hole, both the environmental protection also can carry out further aggravation to medium-sized haydite, and can be natural realize aggravating to different degrees, convenient and fast.

Optionally, in the fourth step, the nano titanium dioxide and the epoxy resin are added into the shellac at the same time, and the weight ratio of the shellac to the nano titanium dioxide is 1: (0.5-0.8).

By adopting the technical scheme, the nano titanium dioxide can improve the toughness of the sealing layer and improve the compressive strength of the medium-sized ceramsite and the heavy-duty ceramsite.

Optionally, in the fifth step, the spraying pressure is: 0.1-0.3MPa.

By adopting the technical scheme, the sealing layer can be more tightly coated on the surface of the weighting body under the spraying pressure, and is not easy to separate from the weighting body; if the spraying pressure is lower than 0.1Mpa, the coating strength of the seal layer and the weight body is low, and if the spraying pressure is higher than 0.3Mpa, the required conditions are high, and the cost is increased.

Optionally, the water reducing agent is a polycarboxylic acid water reducing agent.

By adopting the technical scheme, the polycarboxylic acid water reducing agent not only can improve the workability of concrete, but also can reduce the water-cement ratio, so that the internal void volume of the set cement is obviously reduced, the set cement is more compact, and the compressive strength of the concrete is further improved; and the polycarboxylic acid water reducing agent is cheap and easy to obtain, and is beneficial to reducing the production cost.

In a second aspect, the application provides a production process of the environment-friendly lightweight concrete for the lightweight ceramsite terrace, which adopts the following technical scheme:

a production process of environment-friendly lightweight concrete for a lightweight ceramsite terrace comprises the following steps:

s1, weighing light-duty ceramsite, medium-duty ceramsite, heavy-duty ceramsite, cement, fine sand, water and a water reducing agent in parts by weight;

s2, uniformly stirring the water and the cement, adding the light-duty ceramsite, the medium-duty ceramsite and the heavy-duty ceramsite, stirring for 20-30min, finally adding the fine sand and the water reducing agent, and continuously stirring for 10-15min to obtain a concrete finished product.

By adopting the technical scheme, the water and the cement are stirred, and then the light ceramsite, the medium ceramsite and the heavy ceramsite are added, so that the light ceramsite, the medium ceramsite and the heavy ceramsite are uniformly distributed in the mixture, and the structural strength of the concrete is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the light ceramsite, the medium ceramsite and the heavy ceramsite can be distributed in the concrete according to the weight of the light ceramsite, the medium ceramsite and the heavy ceramsite, so that the light ceramsite, the medium ceramsite and the heavy ceramsite are uniformly distributed in the concrete, and the segregation and layering of the ceramsite in the concrete are reduced, so that the compressive strength of the terrace concrete is improved;

2. the surface of the light ceramsite is coated with the weighting body, so that the weight of the light ceramsite is increased, the light ceramsite is not easy to float on the surface of concrete and settle in the concrete, and the lac and the epoxy resin are mixed and are insoluble in water, so that a sealing layer formed on the surface of the weighting body can ensure that water is not easy to enter the ceramsite in the mixing process of the concrete, the water cement ratio is reduced, and the compressive strength of the concrete is improved;

3. the sludge powder is adopted to enter the pores, so that the environment is protected, the medium-sized ceramsite can be further weighted, the weighting of different degrees can be naturally realized, and the operation is convenient and fast.

Detailed Description

The present application is further described in detail with reference to the following examples, which are intended to illustrate: the following examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer, and all the starting materials in the following examples were obtained from the ordinary commercial sources except for the specific conditions.

Raw materials:

material	Manufacturer of the product
		Light ceramsite	Wuhan Yuan leap environmental protection technology Co Ltd
Water reducing agent	Shandong Long Cheng ze chemical engineering Co Ltd

Examples

Example 1

The environment-friendly light concrete for the light ceramsite terrace comprises the following components in percentage by weight:

table 1 examples 1-5 contents of each component

Wherein the light ceramsite is commercially available light ceramsite, the particle size of the light ceramsite is 5-18 mm, the light ceramsite is continuously graded, the cement is sulphoaluminate cement, and the water reducing agent is calcium lignosulfonate;

the medium-sized ceramsite comprises light ceramsite, a weighting body coated on the surface of the light ceramsite and a sealing layer coated on the surface of the weighting body;

the weight-adding body comprises the following components: calcium oxide, starch and water; the seal layer comprises the following components: epoxy resins and ethylene diamine; the preparation method of the medium-sized ceramsite comprises the following steps: the method comprises the following steps: stirring and mixing 10Kg of calcium oxide, 10Kg of starch and 30Kg of water uniformly to prepare a first spraying liquid;

step two: spraying the first spray liquid on the light ceramsite, wherein the spraying pressure is normal pressure, the spraying flow rate is 1-2m/s, the thickness of the weighted body is 2mm, and drying for 20min at 50 ℃ to obtain an intermediate;

step three: roasting the intermediate at 1000 ℃ for 60min, and cooling to obtain a preparation;

step four: stirring and mixing 20Kg of epoxy resin and 10Kg of ethylenediamine uniformly to obtain a second spray solution;

step five: spraying the second spraying liquid on the prepared body at normal pressure at a spraying flow rate of 3-4m/s and a sealing layer thickness of 3mm, and cooling to room temperature to obtain the medium-sized ceramsite;

the heavy ceramsite comprises medium ceramsite, sludge powder and a sealing layer coated on the surface of the weighting body, wherein the weighting body is provided with a plurality of pores, and the sludge powder is filled in the pores.

The preparation method of the heavy ceramsite comprises the following steps: 1): grinding the sludge and then sieving the ground sludge by a 100-micron sieve to obtain sludge powder;

2): pouring the prepared body into the sludge powder to immerse the prepared body into the sludge powder, stirring for 30min, and taking out to obtain a molded body;

3): spraying the second spraying liquid on the formed body, wherein the spraying pressure is normal pressure, the spraying flow rate is 3-4m/s, the thickness of the sealing layer is 3mm, and cooling to room temperature to obtain heavy ceramsite;

the production process of the environment-friendly light concrete for the light ceramsite terrace comprises the following steps:

s1, weighing light-duty ceramsite, medium-duty ceramsite, heavy-duty ceramsite, cement, fine sand, water and a water reducing agent in parts by weight;

s2, uniformly stirring the water and the cement, adding the light-duty ceramsite, the medium-duty ceramsite and the heavy-duty ceramsite, stirring for 30min, finally adding the fine sand and the water reducing agent, and continuously stirring for 10min to obtain a concrete finished product.

Example 2

The component contents of the environment-friendly light concrete for the light ceramsite terrace are shown in the table;

wherein the light ceramsite is commercially available light ceramsite, the particle size of the light ceramsite is 5-18 mm, the light ceramsite is continuously graded, the cement is sulphoaluminate cement, and the water reducing agent is calcium lignosulfonate;

the medium-sized ceramsite comprises light ceramsite, a weighting body coated on the surface of the light ceramsite and a sealing layer coated on the surface of the weighting body;

the weight-adding body comprises the following components: calcium oxide, starch and water; the seal layer comprises the following components: epoxy resins and ethylene diamine; the preparation method of the medium-sized ceramsite comprises the following steps: the method comprises the following steps: stirring and mixing 10Kg of calcium oxide, 10Kg of starch and 30Kg of water uniformly to prepare a first spraying liquid;

step two: spraying the first spray liquid on the light ceramsite under normal pressure at a spraying flow rate of 1-2m/s and a weighted body thickness of 2mm, and drying at 50 ℃ for 30min to obtain an intermediate;

step three: roasting the intermediate at 900 ℃ for 70min, and cooling to obtain a preparation;

step four: step four: stirring and mixing 20Kg of epoxy resin and 10Kg of ethylenediamine uniformly to obtain a second spray solution;

step five: spraying the second spraying liquid on the prepared body at normal pressure at a spraying flow rate of 3-4m/s and a sealing layer thickness of 3mm, and cooling to room temperature to obtain the medium-sized ceramsite;

the heavy ceramsite comprises medium ceramsite, sludge powder and a sealing layer coated on the surface of the weighting body, wherein the weighting body is provided with a plurality of pores, and the sludge powder is filled in the pores.

The preparation method of the heavy ceramsite comprises the following steps: 1): grinding the sludge and then sieving the ground sludge by a 100-micron sieve to obtain sludge powder;

2): pouring the prepared body into the sludge powder to immerse the prepared body into the sludge powder, stirring for 30min, and taking out to obtain a molded body;

3): spraying the second spraying liquid on the formed body, wherein the spraying pressure is normal pressure, the spraying flow rate is 3-4m/s, the thickness of the sealing layer is 3mm, and cooling to room temperature to obtain heavy ceramsite;

the production process of the environment-friendly light concrete for the light ceramsite terrace comprises the following steps:

s1, weighing light-duty ceramsite, medium-duty ceramsite, heavy-duty ceramsite, cement, fine sand, water and a water reducing agent in parts by weight;

s2, uniformly stirring the water and the cement, adding the light-duty ceramsite, the medium-duty ceramsite and the heavy-duty ceramsite, stirring for 20min, finally adding the fine sand and the water reducing agent, and continuously stirring for 15min to obtain a concrete finished product.

Example 3

The environment-friendly light concrete for the light ceramsite terrace comprises the following components in percentage by weight;

wherein the light ceramsite is commercially available light ceramsite, the particle size of the light ceramsite is 5-18 mm, the light ceramsite is continuously graded, the cement is sulphoaluminate cement, and the water reducing agent is calcium lignosulfonate;

the medium-sized ceramsite comprises light ceramsite, a weighting body coated on the surface of the light ceramsite and a sealing layer coated on the surface of the weighting body;

the weight is composed of the following components: calcium oxide, starch and water; the seal layer comprises the following components: epoxy resins and ethylene diamine; the preparation method of the medium-sized ceramsite comprises the following steps: the method comprises the following steps: stirring and mixing 10Kg of calcium oxide, 10Kg of starch and 30Kg of water uniformly to prepare a first spraying liquid;

step two: spraying the first spray liquid on the light ceramsite, wherein the spraying pressure is normal pressure, the spraying flow rate is 1-2m/s, the thickness of the weighted body is 2mm, and drying for 20min at 50 ℃ to obtain an intermediate;

step three: roasting the intermediate at 1000 ℃ for 60min, and cooling to obtain a preparation;

step four: step four: stirring and mixing 20Kg of epoxy resin and 10Kg of ethylenediamine uniformly to obtain a second spray solution;

step five: spraying the second spraying liquid on the prepared body at normal pressure at a spraying flow rate of 3-4m/s and a sealing layer thickness of 3mm, and cooling to room temperature to obtain the medium-sized ceramsite;

the heavy ceramsite comprises medium ceramsite, sludge powder and a sealing layer coated on the surface of the weighting body, wherein the weighting body is provided with a plurality of pores, and the sludge powder is filled in the pores.

The preparation method of the heavy ceramsite comprises the following steps: 1): grinding the sludge and then screening the ground sludge through a 100-micron screen to obtain sludge powder;

2): pouring the prepared body into the sludge powder to immerse the prepared body into the sludge powder, stirring for 30min, and taking out to obtain a molded body;

3): spraying the second spraying liquid on the formed body, wherein the spraying pressure is normal pressure, the spraying flow rate is 3-4m/s, the thickness of the sealing layer is 3mm, and cooling to room temperature to obtain heavy ceramsite;

the production process of the environment-friendly light concrete for the light ceramsite terrace comprises the following steps:

s1, weighing light-weight ceramsite, medium-size ceramsite, heavy-weight ceramsite, cement, fine sand, water and a water reducing agent in parts by weight;

s2, uniformly stirring the water and the cement, adding the light-duty ceramsite, the medium-duty ceramsite and the heavy-duty ceramsite, stirring for 28min, finally adding the fine sand and the water reducing agent, and continuously stirring for 13min to obtain a concrete finished product.

Example 4

The difference between the examples of the present application and example 3 is that: the light ceramsite, the medium ceramsite and the heavy ceramsite are used in different amounts, and the amounts of the light ceramsite, the medium ceramsite and the heavy ceramsite in example 4 are specifically shown in table 1.

Example 5

The embodiment of the application is different from the embodiment 3 in that: the light ceramsite, the medium ceramsite and the heavy ceramsite are used in different amounts, and the amounts of the light ceramsite, the medium ceramsite and the heavy ceramsite in example 5 are specifically shown in table 1.

Example 6

The difference between the examples of the present application and example 5 is that: the calcium oxide was replaced with an equal amount of alumina.

Example 7

The difference between the examples of the present application and example 6 is that: the amount of each component in the weight is different, and is specifically shown in table 2:

TABLE 2 amounts of the respective components of the weights used in examples 7 to 8

Example 8

The embodiment of the present application differs from embodiment 6 in that: the amounts of the components used in the weighted bodies were varied and are shown in Table 2.

Example 9

The embodiment of the present application differs from embodiment 8 in that: the sealing layer also comprises lac;

the preparation method of the medium-sized ceramsite comprises the following steps: step four: heating the lac to 120 ℃ for melting, then pouring the epoxy resin and the ethylenediamine, and continuously heating, stirring and uniformly mixing to obtain a second spraying liquid.

Example 10

The difference between the examples of the present application and example 9 is that: the amount of each component in the seal layer was varied, as shown in table 3:

TABLE 3 amounts of the respective components of the weights used in examples 10 to 11

Example 11

The difference between the examples of the present application and example 9 is that: the amount of each component in the seal layer was varied and is shown in table 3.

Example 12

The difference between the examples of the present application and example 11 is that: the nano titanium dioxide is added into the sealing layer, and the dosage is 0.5Kg;

and in the preparation method of the medium-sized ceramsite, the step four is as follows: adding the nano titanium dioxide and the epoxy resin into the lac simultaneously.

Example 13

The difference between the examples of the present application and example 12 is that: the dosage of the nano titanium dioxide is 0.8Kg.

Example 14

The difference between the examples of the present application and example 12 is that: the dosage of the nano titanium dioxide is 0.6Kg.

Example 15

The embodiment of the present application differs from embodiment 14 in that: the water reducing agent is a polycarboxylic acid water reducing agent.

Example 16

The embodiment of the present application differs from embodiment 15 in that: the preparation method of the medium-sized ceramsite comprises the following steps: the spraying pressure in the fifth step is 0.2Mpa; the preparation method of the heavy ceramsite comprises the following steps: 3) The medium spray pressure is 0.2Mpa.

Comparative example

Comparative example 1

The comparative example differs from example 1 in that: the ceramsite is light ceramsite.

Performance test

1. Compressive strength detection

The compressive strength of the concrete obtained in examples 1 to 16 and comparative example 1 was measured according to GB/T50081-2002.

The concrete prepared in the examples 1 to 16 and the concrete prepared in the comparative example 1 are respectively put into a mould for prefabricating concrete test blocks of 200mm multiplied by 200mm, standard concrete test blocks of 3d age, 7d age and 28d age are prepared, 12 standard test blocks are poured in each group, the standard test blocks are put into a standard curing room for curing, when the concrete test blocks respectively reach the 3d age, the 7d age and the 28d age, 4 concrete test blocks are taken out each time, each concrete test block is placed on a standard compressive strength testing machine, pressure is sequentially applied until cracks appear on the surface of the test block, the pressure value is recorded, and the average value of the pressure values of the four concrete test blocks is taken as the compressive strength value of the group. The test results are reported in Table 4.

2. Slump test

The slump of the concrete produced in examples 1 to 16 and comparative example 1 was determined with reference to GB 50666-2011.

The concrete prepared in examples 1 to 16 and comparative example 1 were placed in slump cones, respectively, and slump tests were performed, and the results were recorded as shown in table 4.

TABLE 4 results records Table

The analysis of the embodiment 1-5 and the table 4 shows that the appropriate amount of the light-duty ceramsite, the medium-duty ceramsite and the heavy-duty ceramsite is beneficial to the uniform distribution of the light-duty ceramsite, the medium-duty ceramsite and the heavy-duty ceramsite in the concrete, so that the compressive strength of the concrete is improved, the slump is reduced, and the purpose of enhancing the strength of the concrete is achieved;

analysis in combination with examples 5-8 and Table 4 reveals that the use of alumina in place of calcium oxide to produce a heavy body can increase the strength of the heavy body, thereby improving the strength of the concrete; meanwhile, the proper proportion of the aluminum oxide, the starch and the water can improve the adhesive force of the weight body and the light ceramsite, thereby reducing the slump and improving the compressive strength of the concrete;

by combining the examples 8-11 and the analysis in table 4, the lac can enhance the coating force of the epoxy resin on the weight body, so that the sealing layer is not easy to peel off from the weight body, and the water cement ratio of the concrete can be reduced, thereby further improving the compressive strength of the concrete;

by combining the examples 11-14 and the analysis in the table 4, the nano titanium dioxide is added in the seal layer, so that the toughness of the seal layer can be improved, the seal layer is not easy to crack, and the aim of enhancing the strength of concrete is fulfilled;

by combining the examples 14-16 and the analysis in table 4, the polycarboxylic acid water reducing agent can better improve the workability of concrete and reduce the water cement ratio compared with calcium lignosulfonate when preparing the environment-friendly light concrete for the light ceramsite terrace, so that the cement stone is more compact, the compression strength of the concrete is enhanced, and the slump is reduced; when the second spraying liquid is sprayed on the prepared body by adopting the spraying pressure of 0.2Mpa to prepare the sealing layer, the coating force between the sealing layer and the weighting body can be increased, so that the strength of the concrete is improved;

by combining the analysis of the example 1, the comparative example 1 and the table 4, when the ceramsite with different weights is adopted in the concrete, the light ceramsite, the medium ceramsite and the heavy ceramsite are naturally distributed in the concrete, and the segregation and layering of the ceramsite in the concrete can be reduced, so that the compressive strength of the concrete is improved, and the slump is reduced.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. The utility model provides a light haydite terrace environmental protection lightweight concrete which characterized in that: the feed is prepared from the following raw materials in parts by weight: 20-30 parts of ceramsite, 40-60 parts of cement, 35-45 parts of fine sand, 30-50 parts of water and 2-4 parts of water reducing agent;

wherein the ceramsite is prepared from the following raw materials in a weight ratio of 1: (2-3): (4-6) light-duty ceramsite, medium-duty ceramsite and heavy-duty ceramsite;

the medium-sized ceramsite comprises light ceramsite, a weighting body coated on the surface of the light ceramsite and a sealing layer coated on the surface of the weighting body;

the weight is composed of the following components: the aluminum oxide, the starch and the water are mixed according to the weight ratio of 1 (1-2) to 3-4;

the seal layer comprises the following components: the adhesive comprises lac, epoxy resin and ethylenediamine, wherein the weight ratio of the lac to the epoxy resin to the ethylenediamine is 1: (2-6): (1-2).

2. The environment-friendly lightweight concrete for the light ceramsite floor according to claim 1, which is characterized in that: the heavy ceramsite comprises medium ceramsite and sludge powder, the heavy body is provided with a plurality of pores, and the sludge powder is filled in the pores.

3. The environment-friendly lightweight concrete for the light ceramsite floor according to claim 1, which is characterized in that: the sealing layer further comprises nano titanium dioxide, and the weight ratio of the lac, the epoxy resin, the ethylenediamine and the nano titanium dioxide is 1: (2-6): (1-2): (0.5-0.8).

4. The environment-friendly lightweight concrete for the light ceramsite floor according to claim 1, which is characterized in that: the preparation method of the medium-sized ceramsite comprises the following steps:

the method comprises the following steps: stirring and mixing aluminum oxide, water and starch uniformly to prepare a first spraying liquid;

step two: spraying the first spray liquid on light ceramsite, and drying for 20-30min to obtain an intermediate;

step three: roasting the intermediate at 900-1000 deg.C for 60-70min, and cooling to obtain a preparation;

step four: heating and melting the lac, pouring the epoxy resin and the ethylenediamine, and continuously heating, stirring and uniformly mixing to obtain a second spraying liquid;

step five: and spraying the second spraying liquid on the prepared body, and cooling to obtain the medium-sized ceramsite.

5. The light ceramsite floor environment-friendly light concrete according to claim 4, which is characterized in that: the preparation method of the heavy ceramsite comprises the following steps:

1): grinding the sludge to obtain sludge powder;

2): pouring the prepared body into the sludge powder to immerse the prepared body into the sludge powder, stirring for 30-50min, and taking out to obtain a molded body;

3): and spraying the second spraying liquid on the formed body, and cooling to obtain the heavy ceramsite.

6. The environment-friendly lightweight concrete for the light ceramsite floor according to claim 5, is characterized in that: in the fourth step, nano titanium dioxide and epoxy resin are simultaneously added into the lac, and the weight ratio of the lac to the nano titanium dioxide is 1: (0.5-0.8).

7. The environment-friendly lightweight concrete for the light ceramsite floor according to claim 5, is characterized in that: in the fifth step, the spraying pressure is as follows: 0.1-0.3MPa.

8. The environment-friendly lightweight concrete for the light ceramsite floor according to claim 1, which is characterized in that: the water reducing agent is a polycarboxylic acid water reducing agent.

9. The production process of the light ceramsite floor environment-friendly light concrete as claimed in any one of claims 1 to 8, is characterized by comprising the following steps of: the method comprises the following steps:

s1, weighing light-duty ceramsite, medium-duty ceramsite, heavy-duty ceramsite, cement, fine sand, water and a water reducing agent in parts by weight;

s2, uniformly stirring water and cement, adding the light ceramsite, the medium ceramsite and the heavy ceramsite, stirring for 20-30min, finally adding the fine sand and the water reducing agent, and continuously stirring for 10-15min to obtain a concrete finished product.