A kind of flexible perforated material for prefabricated stairs and preparation method thereof
A prefabricated and flexible technology, used in stairs, stepped structures, buildings, etc., can solve the problems of high strength of filling materials and inability to produce large deformations, reducing waste of raw materials, huge economic and social benefits, and operation. simple effect
Active Publication Date: 2021-10-15
CHINA ARCHITECTURE DESIGN & RES GRP CO LTD
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Problems solved by technology
[0005] In view of the above analysis, the present invention aims to provide a flexible perforated material for prefabricated stairs and its preparation method, prefabricated stairs and its installation method, which solves the problems at both ends of the step boards of prefabricated stairs in the prior art. The problem that the filling material has high strength and cannot produce large deformation
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preparation example Construction
[0054] On the other hand, the present invention also provides a method for preparing a flexible hole-filling material for prefabricated stairs, which is used to prepare the above-mentioned flexible hole-filling material for prefabricated stairs. The preparation method includes the following steps:
[0055] Step 1: Mix the modified anionic emulsion, the defoamer and water, and stir evenly to obtain a polymer matrix solution;
[0056] Step 2: Mix the cementitious material, graded sand, water reducing agent, setting time regulator, anti-sedimentation regulator and steel fiber, and use a powder mixer to stir evenly to obtain powder;
[0057] Step 3: Slowly add the powder into the polymer matrix solution at a rate of 80-120g / s, and then use a high-speed disperser to stir for 4-6 minutes to obtain a flowable slurry, and obtain a flexible hole-filling material for prefabricated stairs .
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Abstract
The invention discloses a flexible perforated material for prefabricated stairs and a preparation method thereof, a prefabricated staircase and an installation method thereof, belonging to the technical field of prefabricated buildings, and solves the problem of stair sections of prefabricated stairs in the prior art The hole filling material at both ends has high strength and cannot produce large deformation. The raw materials of the above materials are by weight percentage: 6-12% of anionic emulsion, 0.2-0.4% of defoamer, 30-50% of gelling material, 40-60% of graded sand, 0.1-0.2% of water reducing agent, coagulation 0.1-0.2% of the time regulator, 0.1-0.2% of the anti-sedimentation regulator, 5-10% of the steel fiber, and the balance is water. The above-mentioned prefabricated staircase includes a plurality of step boards that meet up and down. The joint between two adjacent step boards is provided with a ladder beam and a corbel. 1. An elastic pouring part sleeved on the upper part of the bolt and a nut fixedly connected with the upper end of the bolt. The shape of the elastic pouring part is dumbbell-shaped and made of the above materials.
Description
technical field [0001] The invention relates to a prefabricated building, in particular to a flexible perforation material for prefabricated stairs and a preparation method thereof, prefabricated stairs and an installation method thereof. Background technique [0002] The prefabricated staircase is a prefabricated component formed by the upper and lower joints of multiple stair sections. It has the characteristics of fast construction speed, convenient operation, and high appearance quality, and can meet the requirements of green buildings for high efficiency, high quality, low cost, and low energy consumption. . [0003] In the prior art, the commonly used connection method for prefabricated stairs is to reserve round or square holes at both ends of the stair slabs, and fill them with ordinary grouting materials (generally not less than 80 MPa in strength). Since both ends of the stair slab are filled with high-strength grouting material, it is basically impossible to prod...
Claims
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IPC IPC(8): C04B28/16E04F11/02E04F11/022
CPCC04B28/16C04B2111/70C04B2201/50E04F11/02E04F11/022E04F2011/0214C04B7/02C04B7/32C04B22/143C04B24/26C04B2103/50C04B24/06C04B22/147C04B22/10C04B24/383C04B14/48C04B14/06
Inventor 张守峰姚远刘克朱炳寅
Owner CHINA ARCHITECTURE DESIGN & RES GRP CO LTD