Preparation process of environment-friendly high-water-permeable concrete

Abstract

The application discloses an environment-friendly high-water-permeable concrete preparation process, which comprises the following steps: S1, selecting the following raw materials by weight percentage: 800-1000 parts of gravel, 300-500 parts of cement, 100-200 parts of coal cinder, 80-120 parts of diatom mud, 60-100 parts of fine sand, 40-60 parts of bamboo charcoal, 30-80 parts of slag aggregate, 30-80 parts of ceramic powder, 20-40 parts of lime powder, 3-10 parts of grass ash and an additive; S2, uniformly mixing the gravel, cement, diatom mud, fine sand, lime powder and additive by means of a stirrer; S3, uniformly mixing the coal cinder, bamboo charcoal and grass ash, and adding 10% hydrochloric acid during the mixing; S4, treating half of the slag aggregate by dilute sulfuric acid, mixing the ceramic powder into the slag aggregate, and putting the mixed material into the stirrer; and S5, mixing the other half of the slag aggregate with an alum solution to form a suspension, filtering the suspension, adding the suspension into the stirrer for continuous stirring, and obtaining the water-permeable concrete, so that the strength of the concrete surface can be improved, and the water permeability of the concrete can be greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of concrete preparation, and particularly relates to an environment-friendly high-water-permeable concrete preparation process. BACKGROUND

[0002] The water-permeable concrete is also called porous concrete, open-pore concrete or filter concrete, which is a kind of concrete with internal connected pore microstructure and is a kind of engineering material with high water permeability. With the development of society, how to ensure the smooth drainage of urban areas during rainfall and protect regional water resources and underground water level are paid more and more attention. The water-permeable concrete can penetrate the rainwater to the soil in situ during rainfall and filter the rainwater, so as to achieve the effect of purifying water body and protecting regional water resources. Therefore, the water-permeable concrete is more and more widely applied.

[0003] In the prior art, the water-permeable concrete has certain strength and certain water permeability. The existing water-permeable concrete has poor workability, uneven pore distribution and low strength due to the material and preparation process, and cannot meet the requirements of laying high-performance pavement and the requirements of rainwater drainage in rainy season, which affects the use and promotion of the water-permeable concrete product.

[0004] Therefore, the present application provides an environment-friendly high-water-permeable concrete preparation process to solve the above problems. SUMMARY

[0005] The present application aims at solving the problems in the prior art and provides an environment-friendly high-water-permeable concrete preparation process.

[0006] An environment-friendly high-water-permeable concrete preparation process comprises the following steps:

[0007] S1, the following raw materials are selected by weight fraction: 800-1000 parts of gravel, 300-500 parts of cement, 100-200 parts of coal cinder, 80-120 parts of diatom mud, 60-100 parts of fine sand, 40-60 parts of bamboo charcoal, 30-80 parts of slag aggregate, 30-80 parts of ceramic powder, 20-40 parts of lime powder, 3-10 parts of grass ash and an additive;

[0008] The additive comprises 200-300 parts of water, 10-15 parts of water reducing agent, 10-15 parts of air entraining agent and 20-25 parts of polypropylene fiber;

[0009] S2, the gravel, cement, diatom mud, fine sand, lime powder and additive are uniformly mixed by a stirrer for 30-50 min;

[0010] S3, the coal cinder, bamboo charcoal, grass ash are mixed uniformly, 10% hydrochloric acid is added during the mixing, the mixture is put into a stirrer for continuous stirring, and the stirring time is 15-20 min;

[0011] S4, half of the slag aggregate is treated on the surface by dilute sulfuric acid, and ceramic powder is mixed into the slag aggregate, and the mixture is put into a stirrer;

[0012] S5, the other half of the slag aggregate is mixed with alum solution to form a suspension, the suspension is filtered and added to the stirrer for continuous stirring, and the mixture in S4 is added synchronously, and the two are stirred together, the stirring time is 10-15 min, the above raw materials are stirred and mixed uniformly at a stirring speed of 80-125 r / min, and the water permeable concrete is obtained.

[0013] Preferably, in S2, the gravel is crushed by a crushing mechanism before being added to the stirring.

[0014] Preferably, the water reducing agent is a polycarboxylate water reducing agent.

[0015] Preferably, the air entraining agent is one or more of petroleum sulfonate, rosin resin, and sodium alkyl benzene sulfonate.

[0016] Preferably, the coal cinder, bamboo charcoal, and grass ash are crushed during the mixing, and then mixed, and 10% hydrochloric acid is added during the mixing at a ratio of 5:1.

[0017] Preferably, the slag aggregate includes one or more of yellow phosphorus slag particles or blast furnace slag particles.

[0018] Preferably, in S4, the slag aggregate is activated on the surface by sufficient dilute sulfuric acid, and the slag aggregate is coated with ceramic powder after activation.

[0019] The beneficial effects of the present application are:

[0020] In the concrete in the present application, the waste materials such as gravel, coal cinder, and bamboo charcoal are used to prepare the concrete, which is more environmentally friendly, and the treated slag aggregate is combined with cement, which not only improves the strength of the concrete surface, but also greatly improves the water permeability of the concrete, and the coal cinder, bamboo charcoal, and grass ash treated by hydrochloric acid are used to improve the strength of the concrete and improve the water permeability of the concrete. DETAILED DESCRIPTION

[0021] The present application will be further described below with reference to specific embodiments.

[0022] Example 1

[0023] An environmentally friendly high water permeable concrete preparation process, comprising the following steps:

[0024] S1, the following required raw materials are selected by weight fraction: 800 parts of crushed stone, 300 parts of cement, 100 parts of coal cinder, 80 parts of diatom mud, 60 parts of fine sand, 40 parts of bamboo charcoal, 30 parts of slag aggregate, 30 parts of ceramic powder, 20 parts of lime powder, 3 parts of lime, and additives;

[0025] The additives include 200 parts of water, 10 parts of water reducing agent, 10 parts of air entraining agent, and 20 parts of polypropylene fiber.

[0026] S2, the crushed stone, cement, diatom mud, fine sand, lime powder, and additives are mixed uniformly by a stirrer for 30 minutes.

[0027] S3, the coal cinder, bamboo charcoal, and lime are mixed uniformly, 10% hydrochloric acid is added during the mixing, and the mixture is put into the stirrer for further stirring for 15 minutes.

[0028] S4, half of the slag aggregate is treated on the surface by dilute sulfuric acid, and ceramic powder is mixed into the slag aggregate, and the mixture is put into the stirrer.

[0029] S5, the other half of the slag aggregate is mixed with alum solution to form a suspension, the suspension is filtered and added to the stirrer for further stirring, and the mixture in S4 is added synchronously, and stirred together for 10 minutes. The above raw materials are stirred and mixed uniformly at a stirring speed of 80 r / min to obtain the pervious concrete.

[0030] Further, in S2, the crushed stone is crushed by a crushing mechanism before being added to the stirrer.

[0031] Further, the water reducing agent is a polycarboxylate water reducing agent, and the air entraining agent is one or more of petroleum sulfonate, rosin resin, and sodium alkyl benzene sulfonate.

[0032] Further, the coal cinder, bamboo charcoal, and lime are crushed before being mixed, and 10% hydrochloric acid is added during the mixing at a ratio of 5:1.

[0033] Further, the slag aggregate includes one or more of yellow phosphorus slag particles or blast furnace slag particles.

[0034] Further, in S4, the slag aggregate is activated on the surface by sufficient dilute sulfuric acid, and ceramic powder is wrapped on the surface of the slag aggregate after activation.

[0035] Example 2

[0036] An environmentally friendly high-pervious concrete preparation process, comprising the following steps:

[0037] S1, select the following required raw materials by weight parts: 1000 parts of gravel, 500 parts of cement, 200 parts of coal cinder, 120 parts of diatom mud, 100 parts of fine sand, 60 parts of bamboo charcoal, 80 parts of slag aggregate, 80 parts of ceramic powder, 40 parts of lime powder, 10 parts of lime and additives;

[0038] The additives include 300 parts of water, 15 parts of water reducing agent, 15 parts of air entraining agent, and 25 parts of polypropylene fiber.

[0039] S2, the gravel, cement, diatom mud, fine sand, lime powder and additives are uniformly mixed by a stirrer for 50 minutes.

[0040] S3, the coal cinder, bamboo charcoal and lime are uniformly mixed, 10% hydrochloric acid is added during the mixing process, and the mixture is put into the stirrer for continuous stirring for 20 minutes.

[0041] S4, half of the slag aggregate is treated on the surface by dilute sulfuric acid, and ceramic powder is mixed into the slag aggregate, and the mixture is put into the stirrer.

[0042] S5, the other half of the slag aggregate is mixed with alum solution to form a suspension, the suspension is filtered and added to the stirrer for continuous stirring, and the mixture in S4 is added synchronously, and stirred together for 15 minutes. The above raw materials are uniformly mixed at a stirring speed of 125 r / min to obtain the pervious concrete.

[0043] Further, in S2, the gravel is crushed by a crushing mechanism before being added to the stirrer.

[0044] Further, the water reducing agent is a polycarboxylate water reducing agent, and the air entraining agent is one or more of petroleum sulfonate, rosin resin, and sodium alkyl benzene sulfonate.

[0045] Further, the coal cinder, bamboo charcoal and lime are crushed during mixing, and crushed and mixed during mixing, and 10% hydrochloric acid is added at a ratio of 5:1.

[0046] Further, the slag aggregate includes one or more of yellow phosphorus slag particles or blast furnace slag particles.

[0047] Further, in S4, the slag aggregate is surface activated by sufficient dilute sulfuric acid, and the slag aggregate surface is coated with ceramic powder after activation.

[0048] Example 4

[0049] An environmentally friendly high-pervious concrete preparation process, comprising the following steps:

[0050] S1, the following required raw materials are selected by weight fraction: 920 parts of crushed stone, 420 parts of cement, 155 parts of coal cinder, 105 parts of diatom mud, 75 parts of fine sand, 45 parts of bamboo charcoal, 45 parts of slag aggregate, 45 parts of ceramic powder, 32 parts of lime powder, 7 parts of lime, and additives;

[0051] The additives include 245 parts of water, 11 parts of water reducing agent, 11 parts of air entraining agent, and 22 parts of polypropylene fiber.

[0052] S2, the crushed stone, cement, diatom mud, fine sand, lime powder, and additives are mixed and stirred uniformly by a stirrer for 38 minutes.

[0053] S3, the coal cinder, bamboo charcoal, and lime are mixed uniformly, 10% hydrochloric acid is added during the mixing, and the mixture is put into the stirrer for further stirring for 16 minutes.

[0054] S4, half of the slag aggregate is treated on the surface by dilute sulfuric acid, and ceramic powder is mixed into the slag aggregate, and the mixture is put into the stirrer.

[0055] S5, the other half of the slag aggregate is mixed with alum solution to form a suspension, the suspension is filtered and added to the stirrer for further stirring, and the mixture in S4 is added synchronously, and stirred together for 11 minutes. The above raw materials are stirred and mixed uniformly at a stirring speed of 105 r / min to obtain the pervious concrete.

[0056] Further, in S2, the crushed stone is crushed by a crushing mechanism before being added to the stirrer.

[0057] Further, the water reducing agent is a polycarboxylate water reducing agent, and the air entraining agent is one or more of petroleum sulfonate, rosin resin, and sodium alkyl benzene sulfonate.

[0058] Further, the coal cinder, bamboo charcoal, and lime are crushed before being mixed, and 10% hydrochloric acid is added during the mixing at a ratio of 5:1.

[0059] Further, the slag aggregate includes one or more of yellow phosphorus slag particles or blast furnace slag particles.

[0060] Further, in S4, the slag aggregate is surface activated by sufficient dilute sulfuric acid, and ceramic powder is wrapped on the surface of the slag aggregate after activation.

[0061] Example 3

[0062] An environmentally friendly high-pervious concrete preparation process, comprising the following steps:

[0063] S1, select the following required raw materials by weight parts, gravel 900 parts, cement 400 parts, coal cinder 150 parts, diatom mud 100 parts, fine sand 80 parts, bamboo charcoal 50 parts, slag aggregate 50 parts, ceramic powder 50 parts, lime powder 30 parts, grass ash 6 parts and additives;

[0064] The additives include water 250 parts, water reducing agent 12 parts, air entraining agent 12 parts, polypropylene fiber 22 parts.

[0065] S2, the gravel, cement, diatom mud, fine sand, lime powder and additives are mixed uniformly by a stirrer, and the stirring time is 40 min.

[0066] S3, the coal cinder, bamboo charcoal and grass ash are mixed uniformly, 10% hydrochloric acid is added during the mixing, and the mixture is put into the stirrer for continuous stirring, and the stirring time is 18 min.

[0067] S4, half of the slag aggregate is treated on the surface by dilute sulfuric acid, and ceramic powder is mixed into the slag aggregate, and the mixture is put into the stirrer.

[0068] S5, the other half of the slag aggregate is mixed with alum solution to form a suspension, the suspension is filtered and added to the stirrer for continuous stirring, and is synchronously added with the mixture in S4, and is stirred together, and the stirring time is 12 min, the above raw materials are stirred and mixed uniformly at a stirring speed of 100 r / min, and the pervious concrete is obtained.

[0069] Further, in S2, the gravel is crushed by a crushing mechanism before being added to the stirrer.

[0070] Further, the water reducing agent is a polycarboxylate water reducing agent, and the air entraining agent is one or more of petroleum sulfonate, rosin resin and sodium alkyl benzene sulfonate.

[0071] Further, the coal cinder, bamboo charcoal and grass ash are crushed during the mixing, and are mixed after crushing, and 10% hydrochloric acid is added during the mixing at a ratio of 5:1.

[0072] Further, the slag aggregate includes one or more of yellow phosphorus slag particles or blast furnace slag particles.

[0073] Further, in S4, the slag aggregate is surface activated by sufficient dilute sulfuric acid, and the slag aggregate is coated with ceramic powder after activation.

[0074] The concrete in the application is prepared by using waste materials such as gravel, coal cinder and bamboo charcoal, is more environmentally friendly, and the treated slag aggregate is combined with cement, which can not only improve the strength of the concrete surface, but also greatly improve the water permeability of the concrete, and the coal cinder treated by hydrochloric acid, bamboo charcoal and grass ash are used to improve the strength of the concrete and improve the water permeability of the concrete.

[0075] The above is only a preferred specific embodiment of the application, but the protection scope of the application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the application within the technical range disclosed by the application, which should be covered within the protection scope of the application.

Claims

1. An environmentally friendly high permeable concrete preparation process, characterized in that, The method comprises the following steps: S1, selecting the following raw materials by weight parts: 800-1000 parts of gravel, 300-500 parts of cement, 100-200 parts of coal cinder, 80-120 parts of diatom mud, 60-100 parts of fine sand, 40-60 parts of bamboo charcoal, 30-80 parts of slag aggregate, 30-80 parts of ceramic powder, 20-40 parts of lime powder, 3-10 parts of grass ash, and additives; The additives include 200-300 parts of water, 10-15 parts of water reducing agent, 10-15 parts of air entraining agent, and 20-25 parts of polypropylene fiber; S2, the gravel, cement, diatom mud, fine sand, lime powder and additives are uniformly mixed by a stirrer for 30-50 minutes; S3, the coal cinder, bamboo charcoal and grass ash are uniformly mixed, 10% hydrochloric acid is added during the mixing process, the mixture is put into the stirrer for continuous stirring for 15-20 minutes; and the coal cinder, bamboo charcoal and grass ash are crushed during the mixing process, and then mixed, 10% hydrochloric acid is added during the mixing process at a ratio of 5:1; S4, half of the slag aggregate is treated on the surface by dilute sulfuric acid, and ceramic powder is mixed into the slag aggregate, and the mixture is put into the stirrer; S5, the other half of the slag aggregate is mixed with alum solution to form a suspension, the suspension is filtered and added to the stirrer for continuous stirring, and the mixture in S4 is added synchronously, and stirred together for 10-15 minutes, the above raw materials are uniformly stirred at a stirring speed of 80-125 r / min to obtain the pervious concrete.

2. The preparation process of the environment-friendly and high-water-permeable concrete according to claim 1, characterized in that, In S2, the gravel is crushed by a crushing mechanism before being added to the stirrer.

3. The preparation process of the environment-friendly and high-water-permeable concrete according to claim 1, characterized in that, The water reducing agent is a polycarboxylate water reducing agent.

4. The preparation process of the environment-friendly and high-water-permeable concrete according to claim 1, characterized in that, The air entraining agent is one or more of petroleum sulfonate, rosin resin, and sodium alkyl benzene sulfonate.

5. The process for preparing an environmentally friendly high water permeable concrete according to claim 1, characterized in that The slag aggregate includes one or more of yellow phosphorus slag particles or blast furnace slag particles.

6. The preparation process of the environment-friendly and high-water-permeable concrete according to claim 1, characterized in that In S4, the slag aggregate is activated on the surface by sufficient dilute sulfuric acid, and the slag aggregate is coated with ceramic powder after activation.