Method for on-site casting molding of gypsum internal partition wall

A technology of in-situ pouring and inner partition wall, applied in the direction of wall, building material processing, building components, etc. Short cycle, good flatness, fast hardening effect

Inactive Publication Date: 2010-06-09
马兆林 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, from gypsum powder to finished partition wall, it generally needs to go through the process of "transporting the gypsum powder to the wallboard production plant, making gypsum wallboard or gypsum block under a certain process system, drying it in the air for 20 days, and transporting it to the construction site. , hoisted to the construct

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1 A wall with a size of 4000mm×2670mm and a thickness of 100mm was poured on site.

[0030] (1) Add protein gypsum retarder to building gypsum powder according to 0.5‰ of its mass to obtain modified building gypsum powder.

[0031] Before construction, according to GB / T 17669.4-1999 "Determination of Physical Properties of Construction Gypsum Plaster", the modified building gypsum powder was tested for the two working parameters of standard consistency, water consumption and setting time. The result was that the initial setting time was 20 minutes, and the final The coagulation time is 25 minutes, and the water consumption for standard consistency is 0.65.

[0032] (2) Assemble a formwork with an area of ​​4000mm×2670mm at the designated wall position, and inflate and expand the inflatable sealing tape to completely seal the joints between the formwork and the formwork and beams and columns, and the thickness of the mold cavity is 100mm.

[0033] (3) Calculate ...

Embodiment 2

[0039] Example 2 A wall with a size of 4000mm×2670mm and a thickness of 120mm was poured on site.

[0040] (1) Add protein gypsum retarder to building gypsum powder according to 0.6‰ of its mass to obtain modified building gypsum powder.

[0041] Before construction, according to GB / T 17669.4-1999 "Determination of Physical Properties of Construction Gypsum Plaster", the modified building gypsum powder was tested for the two working parameters of standard consistency, water consumption and setting time. The result was that the initial setting time was 22 minutes, and the final The setting time is 27 minutes, and the water consumption for standard consistency is 0.60.

[0042] (2) Assemble a formwork with an area of ​​4000mm×2670mm at the designated wall position, and inflate and expand the inflatable sealing tape to completely seal the joints between the formwork and the formwork and beams and columns, and the thickness of the mold cavity is 120mm.

[0043] (3) Calculate the ...

Embodiment 3

[0049]Example 3 A wall body with a size of 5000mm×2600mm and a thickness of 150mm was poured on site.

[0050] (1) Add protein gypsum retarder to construction gypsum powder according to 0.7‰ of its mass to obtain modified construction gypsum powder.

[0051] Before construction, according to GB / T 17669.4-1999 "Determination of Physical Properties of Construction Gypsum Plaster", the modified building gypsum powder was tested for the two working parameters of standard consistency, water consumption and setting time. The result was that the initial setting time was 24 minutes, and the final The coagulation time is 28 minutes, and the water consumption for standard consistency is 0.58.

[0052] (2) Assemble a formwork with an area of ​​5000mm×2600mm at the designated wall position, and inflate and expand the inflatable sealing tape to completely seal the joints between the formwork and the formwork and beams and columns, and the thickness of the mold cavity is 150mm.

[0053] (3...

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PUM

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Abstract

The invention relates to a method for on-site casting molding of a gypsum internal partition wall, which comprises the following steps: (1) modifying building gypsum powder, controlling the initial setting time of the gypsum powder to between 20 and 25 minutes and controlling the final setting time of the gypsum powder to between 25 minutes and 30 minutes, and before construction, testing two working parameters of the water consumption for normal consistency and the setting time of the modified building gypsum powder; (2) splicing templates at a position needing walling in a building according to the size and thickness of a wall; (3) calculating water consumption for pulping according to the water consumption for the normal consistency; (4) orderly conveying the water consumption and the modified building gypsum powder into a pulping system for manually-controlled pulping to obtain a pulp; (5) pumping and casting the pulp into a template cavity which is well arranged until the template cavity is filled with the pulp; and (6) from the time when casting is stopped on 25 to 30 minutes, de-molding to obtain the product. The wall cast-molded by the method has the characteristics of good smoothness, no defects such as joint and gap and the like, simple process and low production cost.

Description

technical field [0001] The invention relates to a method for forming a wall body, in particular to a method for casting and forming a gypsum inner partition wall on site. Background technique [0002] Gypsum building material has the advantages of light weight, high strength, low production energy consumption, good size stability of hardened body, and harmless to human body. It is a green and energy-saving building material that is respected and developed internationally, so it is widely used in many countries and regions. In recent years, with the adjustment of the structure of traditional wall materials and the rise of building energy conservation, my country's gypsum building materials have made great progress. [0003] At present, the forms of gypsum wall materials mainly include hollow gypsum strips and hollow gypsum blocks. In order to meet market demand, there are various specifications and models. Usually, from gypsum powder to finished partition wall, it generally ...

Claims

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Application Information

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IPC IPC(8): E04B2/84E04G21/02
Inventor 马兆林冯启彪马占军侯文虎
Owner 马兆林
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