Building wall overall pouring material and construction method thereof

An integral pouring and building technology, applied in the field of building materials, can solve the problems of cement-based materials such as large dry shrinkage, high water absorption, and difficulty in ideal cost performance, and achieve simple and easy construction methods, good foaming and micro-expansion work, The effect of excellent waterproof and anti-seepage performance

Inactive Publication Date: 2017-02-08

李奕

3 Cites 6 Cited by

AI-Extracted Technical Summary

Problems solved by technology

Its main disadvantages are: 1. Its own weight is heavy, and the size of the engineering foundation and beams and columns is increased in the application of construction engineering. The comprehensive cost of the project is high, and it cannot be used in high-rise buildings; The main disadvantages of thermal insulation aerated concrete blocks (boards) are: 1. The production cost is high, and it is very difficult to achieve the ideal price/performance ratio; Combined with beams and columns, it is difficult to meet the code requirements

The common problems of the above materials are high water absorption rate and large shrinkage value, which can easily cause wall cracks in actual construction and application, and the surface paint layer is hollow, cracked and peeled off

The third is hemihydrate gypsum interior wall blocks. The main disadvantages are: 1. Various chemical hemihydrate gypsums vary greatly, and the quality is extremely unstable when used for interior wall blocks. Especially the common problem of phosphorus hemihydrate gypsum is efflorescence. Its comprehensive utilization is curbed; 2. The water absorption rate is high, and it will pulverize when it encounters water. The blocks cannot be used in long-term wet places such as kitchens, bathrooms, etc.; 3. The thermal performance cannot meet the upcoming internal wall insulation requirements

The materials used for external wall insulation are all cement-based materials, that is, the application of cement-based external wall insulation mortar technology. This type of material and construction method have the following disadvantages: 1. The dry sh...

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Method used

A kind of integral pouring material of building wall proposed by the present invention has good thermal insulation performance, light weight, high compressive strength, excellent waterproof and impermeability and waterproof grade is A grade, and additives adopt inorganic compounds and organic compounds and polymers The polymer is mixed and formulated to achieve an ideal waterproof effect, with good foaming and micro-expansion work. A large amount of industrial by-product chemical gypsum is mixed into the ingredients to obtain materials with relatively stable quality, which improves the comprehensive utilization of chemical gypsum and is environmentally friendly. The protection and comprehensive utilization of renewable resources play an active role. The wall body cast and formed with the material proposed by the present invention has superior heat insulation, heat preser...

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Abstract

The invention discloses a building wall overall pouring material, which is composed of the following raw materials by weight percentage: 92-94% of a cementitious material, 6-8% of a thermal insulation lightweight aggregate, and an additive accounting for 3-5% of the total amount of the cementitious material. The building wall overall pouring material provided by the invention has the advantages of good thermal insulation performance, light weight, high compressive strength, and excellent waterproofness and impermeability, improves the comprehensive utilization rate of chemical gypsum, and plays a positive role in environmental protection and comprehensive utilization of renewable resources. The wall poured by the material provided by the invention has superior thermal insulation, heat preservation and sound insulation performance, good compressive and impact strength, excellent weatherability, excellent interfacial properties, and excellent waterproofness and impermeability. The invention also provides a construction method of the building wall overall pouring material, and the construction method is simple, has no need of vibration and tamping, can realize mold removal and curing after final setting, and is low in cost, thus being worthy of popularization.

Technology Topic

GypsumThermal insulation +8

Image

Examples

Experimental program(4)
Effect test(1)

Example Embodiment

[0021] Example one

[0022] An integral pouring material for building walls proposed by the present invention includes the following raw materials in weight percentages: 3% vitrified beads, 3% rice husk, 4% additives, 7% cement, 17% fly ash above grade 3, lime 3%, slag powder 2%, iron slag 8%, the balance is hemihydrate gypsum.

[0023] The additives are composite additives, and the weight percentages of each component are: sodium methyl silicate 4%, silane water repellent 5%, melamine water former 3%, alkali inhibitor 8%, acrylic emulsion 12%, lithium carbonate 7%, Ammonium borate 9%, calcium chloride 7%, polyvinyl alcohol 12%, alum 4%, and the balance is sodium hydroxide.

[0024] The construction method includes the following steps:

[0025] S1. Put the said weight percentage of vitrified microbeads, rice husks, cement, fly ash, lime, slag powder, iron slag and hemihydrate gypsum in a dry powder mixer to form a mixed dry powder material;

[0026] S2. Support the formwork according to the design requirements of the construction drawing. The inner side of the formwork is fully covered with agricultural plastic film, depending on the wall surface width. During civil construction, three 50mm diameter vertical penetrations are reserved on the frame beam above the poured wall. Grouting holes, 2 grouting holes with a diameter of 50mm can be reserved at the bottom of the beam, depending on the width of the wall;

[0027] S3. Calculate the amount of material used according to the volume of the required pouring wall, put the mixed dry powder and additives into the high-pressure grouting mixer, add water and stir to form a thin slurry. The ratio of the added water to the total amount of dry powder and additives is 1:0.64. The thin slurry is injected into the mold cavity from the high-pressure mortar conveying pipeline through the grouting hole. After 15 minutes, the mold can be removed after the slurry is finally set. When the mold is removed, the agricultural plastic film on the inner side of the template covering the wall is retained;

[0028] S4. After removing the mold, the wall is protected from water and cured for 8 days, and then transferred to normal maintenance. After 27 days of normal curing, it becomes the whole wall.

Example Embodiment

[0029] Example two

[0030] An integral pouring material for building walls proposed by the present invention includes the following raw materials in weight percentages: vitrified beads 7%, additives 4%, cement 9%, grade 3 or higher fly ash 16%, lime 3%, slag powder 3%, steel slag 7%, the balance is hemihydrate gypsum.

[0031] The additives are composite additives, and the weight percentages of each component are: sodium methyl silicate 3%, silane water repellent 4%, melamine water former 1%, alkali inhibitor 6%, acrylic emulsion 14%, lithium carbonate 8%, Ammonium borate 8%, calcium chloride 9%, polyvinyl alcohol 14%, alum 3%, and the balance is sodium hydroxide.

[0032] The construction method includes the following steps:

[0033] S1. Put the said weight percentage of vitrified microbeads, cement, fly ash, lime, slag powder, steel slag and hemihydrate gypsum in a dry powder mixer to fully mix into a mixed dry powder material;

[0034] S2. The formwork is erected according to the design requirements of the construction drawing. The inside of the formwork is fully covered with agricultural plastic film, depending on the wall surface width. During civil construction, four 50mm diameter vertical penetrations are reserved on the frame beam above the poured wall. Grouting holes, 2 grouting holes with a diameter of 50mm can be reserved at the bottom of the beam, depending on the width of the wall;

[0035] S3. Calculate the amount of material used according to the volume of the required pouring wall, put the mixed dry powder and additives into the high-pressure grouting mixer, add water and stir to form a thin slurry. The ratio of the added water to the total amount of dry powder and additives is 1:0.62. The thin slurry is injected into the mold cavity from the high-pressure mortar pipeline through the grouting hole. After 10 minutes, the mold can be removed after the slurry is finally set. When the mold is removed, the agricultural plastic film on the inner side of the template covering the wall is retained;

[0036] S4. After removing the mold, the wall is protected from water for 7 days and then transferred to normal maintenance. After 28 days of normal maintenance, the wall becomes the whole wall.

Example Embodiment

[0037] Example three

[0038] An integral pouring material for building walls proposed by the present invention includes the following raw materials in weight percentages: 7% vermiculite, 1% polystyrene particles, 4% additives, 10% cement, 10% fly ash above grade 3, lime 3 %, slag powder 3%, steel slag 6%, the balance is hemihydrate gypsum.

[0039] The additive is a composite additive. The weight percentages of each component are: sodium methyl silicate 5%, silane water repellent 6%, melamine water former 2%, alkali inhibitor 7%, acrylic emulsion 13%, lithium carbonate 6%, Ammonium borate 9%, calcium chloride 8%, polyvinyl alcohol 10%, alum 5%, and the balance is sodium hydroxide.

[0040] The construction method includes the following steps:

[0041] S1. Put the said weight percentage of vermiculite, polyphenylene particles, cement, fly ash, lime, slag powder, steel slag and semi-hydrated gypsum in a dry powder mixer to fully mix into a mixed dry powder material;

[0042] S2. The formwork is erected according to the design requirements of the construction drawing. The inner side of the formwork is fully covered with agricultural plastic film, depending on the width of the wall surface. During civil construction, a 50mm diameter vertical penetration is reserved on the frame beam above the cast wall. Grouting holes, 3 grouting holes with a diameter of 50mm can also be reserved at the bottom of the beam, depending on the width of the wall;

[0043] S3. Calculate the amount of material used according to the required pouring wall volume, put the mixed dry powder and additives into the high-pressure grouting mixer, add water and stir to form a thin slurry, the ratio of the added water to the total amount of dry powder and additives is 1:0.6, The thin slurry is injected into the mold cavity from the high-pressure mortar pipeline through the grouting hole. After 12 minutes, the mold can be removed after the slurry is finally set. When the mold is removed, the agricultural plastic film on the inner side of the template covering the wall is retained;

[0044] S4. After the dismantled wall is protected from water for 6 days, it is transferred to the normal maintenance. After 25 days of normal maintenance, the wall becomes the integral wall.

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Description & Claims & Application Information

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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

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Classification and recommendation of technical efficacy words

Good insulation performance
High compressive strength

Thermal insulation and heat preservation slurry composition and thermal insulation and heat preservation plate containing the same

ActiveCN103086661AGood insulation performanceClimate change adaptationHeat proofingThermal insulationMagnesium

Owner:深圳市爱思宝科技发展有限公司

Building wall overall pouring material and construction method thereof

AI-Extracted Technical Summary

Problems solved by technology

Method used

Abstract

Image

Examples

Example Embodiment

Example Embodiment

Example Embodiment

PUM

Description & Claims & Application Information

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