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Method for preparing bitumen-based waterproof roll

A waterproofing membrane, bitumen-based technology, applied in asphalt layered products, chemical instruments and methods, roofing using flexible materials, etc., can solve problems such as poor aging resistance, and achieve good aging resistance and waterproof performance, good High temperature mechanical properties, good acid and alkali resistance

Pending Publication Date: 2020-02-04
曾小燕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Technical problem to be solved by the present invention: Aiming at the problem of poor aging resistance of traditional asphalt waterproofing membranes, a preparation method of asphalt-based waterproofing membranes is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Take slag, water glass, cement, carbon fiber cloth and deionized water, mix the slag, water glass, cement and carbon fiber cloth in a mortar mixer for stirring to obtain a mixed material, add deionized water to the mixed material, Stir at a stirring speed of 100 r / min for 10 minutes to obtain a mixed slurry, inject the mixed slurry into a steel mold, and remove the mold after curing at constant temperature and humidity to obtain a semi-finished product, which is crushed and ground to obtain a filler; thermoplastic polyurethane Mixing with EVA emulsion and stirring at constant temperature to obtain modified emulsion; take asphalt, modified emulsion and filler, melt the asphalt to obtain melt, add filler to melt, stir in oil bath to obtain base Material A, the base material A is sheared to obtain the base material B, the modified emulsion is added to the base material B, and the stirring treatment is performed to obtain the precursor material; the precursor material is coa...

Embodiment 2

[0032] Take slag, water glass, cement, carbon fiber cloth and deionized water, mix the slag, water glass, cement and carbon fiber cloth in a mortar mixer for stirring to obtain a mixed material, add deionized water to the mixed material, Stir for 12 minutes at a stirring speed of 150 r / min to obtain a mixed slurry, inject the mixed slurry into a steel mold, and remove the mold after curing at constant temperature and humidity to obtain a semi-finished product, which is crushed and ground to obtain a filler; thermoplastic polyurethane Mixing with EVA emulsion and stirring at constant temperature to obtain modified emulsion; take asphalt, modified emulsion and filler, melt the asphalt to obtain melt, add filler to melt, stir in oil bath to obtain base Material A, the base material A is sheared to obtain the base material B, the modified emulsion is added to the base material B, and the stirring treatment is performed to obtain the precursor material; the precursor material is coa...

Embodiment 3

[0034] Take slag, water glass, cement, carbon fiber cloth and deionized water, mix the slag, water glass, cement and carbon fiber cloth in a mortar mixer for stirring to obtain a mixed material, add deionized water to the mixed material, Stir for 15 minutes at a stirring speed of 200 r / min to obtain a mixed slurry, inject the mixed slurry into a steel mold, and remove the mold after curing at constant temperature and humidity to obtain a semi-finished product, which is crushed and ground to obtain a filler; thermoplastic polyurethane Mix with EVA emulsion and stir at constant temperature to obtain modified emulsion; take asphalt, modified emulsion and filler, melt the asphalt to obtain melt, add filler to melt, stir in oil bath to obtain base Material A, the base material A is sheared to obtain the base material B, the modified emulsion is added to the base material B, and the stirring treatment is performed to obtain the precursor material; the precursor material is coated on ...

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Abstract

The invention relates to a method for preparing a bitumen-based waterproof roll and belongs to the technical field of waterproof rolls. According to the method, slag as a raw material, sodium silicateas an alkaline activator, and carbon fiber cloth as a reinforcing material are compounded with cement to prepare an inorganic cementing material as a filler, and thermoplastic polyurethane modified EVA (ethylene vinyl acetate) resin and bitumen as raw materials are adopted as raw materials to prepare the bitumen based waterproof roll. Carbon fiber filaments have good high-temperature mechanical properties under anaerobic conditions, and the melting point can be up to about 4000 DEG C; the alkaline activator is capable of dissociating the vitreous structure of the slag and rearranging the slagto produce a calcium silicate hydrate gel and calcium aluminate hydrate, so that the prepared bitumen-based waterproof roll has good high temperature resistance; and the EVA resin has permanent flexibility, good acid and alkaline resistance, ultraviolet aging resistance as well as good adhesion, and the EVA resin is modified with thermoplastic polyurethane, so that the modified EVA resin has goodwaterproof performance, and the prepared bitumen-based waterproof roll has good aging resistance and waterproof performance.

Description

technical field [0001] The invention relates to a preparation method of an asphalt-based waterproof coiled material, and belongs to the technical field of waterproof coiled materials. Background technique [0002] As an indispensable and important part of buildings or bridges, waterproof materials can prevent the erosion of building materials by rainwater, domestic water, groundwater and moisture, and avoid the decline of building structural strength and shortening of service life. After years of development, the variety and performance of waterproof materials at home and abroad have been greatly improved. In general, waterproof materials can be divided into inorganic waterproof materials and organic waterproof materials according to different materials, that is, rigid waterproof materials and flexible waterproof materials, while organic waterproof materials have the best waterproof effect, and organic waterproof materials occupy roughly the same proportion in the waterproof...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B11/02B32B11/04B32B11/10B32B27/32B32B5/02B32B7/04B32B37/10C08L95/00C08L75/04C08L23/08C08K13/04C08K7/14C08K3/34C08K3/22C04B28/26E04D5/10E04B1/66E02D31/02E01D19/08
CPCB32B7/08B32B11/046B32B11/10B32B27/32B32B33/00B32B37/10B32B2419/00C04B28/26C08K2003/2227C08L95/00C08L2201/08C08L2205/03E01D19/083E02D31/02E04B1/66E04D5/10C08L75/04C08L23/0853C08K13/04C08K7/14C08K3/34C08K3/22C04B18/141C04B7/00C04B14/386
Inventor 曾小燕
Owner 曾小燕
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