Waterproofing sealant for asphalt and preparation method thereof

Abstract

The invention discloses a waterproofing sealant for asphalt and a preparation method thereof. The sealant comprises the following formula components in parts by mass: 1-2 parts of a bimetallic coupling agent, 60-70 parts of pulverized limestone, 6-8 parts of xylene, 20-30 parts of rosin dispersion, 2-4 parts of a zirconium coupling agent, 2-4 parts of sodium alginate, 15-25 parts of sodium carboxymethylcellulose, 10-20 parts of sodium polyacrylate, 12-14 parts of polyacrylamide, 6-10 parts of chloroprene rubber latex, 10-12 parts of styrene butadiene rubber latex, and 1-3 parts of a rare earth coupling agent. After the product is solidified, an irreversible bonding effect is played, and the waterproofing sealant is peristaltic and can be infiltrated into cement gel and concrete capillary apertures in the process of solidification of cement, in order to realize tight, firm and irreversible bonding effects as closely linked as flesh and blood.

Description

technical field [0001] The invention relates to the field of asphalt consumables, in particular to an asphalt waterproof sealant and a preparation method thereof. Background technique [0002] At present, the linear expansion coefficient of the PPR or PVC water supply and drainage pipes passing through the floor in the kitchen and bathroom of the building is very different from that of the concrete floor. *10-5 / ℃, after several seasonal freezing and thawing cycles, gaps are likely to appear at the connection between the water supply and drainage pipes and the concrete floor. During the construction of water supply and drainage pipes, sealing and waterproofing treatment is required. The existing sealing waterproof treatment technology has the following several methods: [0003] Modified asphalt sealing treatment, the modified asphalt is melted at a suitable temperature and then poured. The operation of this process is complicated, and the temperature control and coating pro...

AI Technical Summary

Problems solved by technology

First of all, when the asphalt is hot-melted, the temperature control should be just right. If the temperature is too high, the fluidity of the asphalt will be too good, and the asphalt will not be able to adhere to the PPR or PVC pipe, and the seal will not be achieved. Moreover, when the temperature exceeds 100°C, it will be easily damaged. ; If the temperature is too low, the adhesion performance of asphalt and PPR or PVC pipes, as well as concrete will not meet the requirements

The second is to pay great attention to the method of construction, and the coating should be very uniform, and it is often necessary to repeat the coating several times. construction techniques to compensate