A kind of bridge deck waterproof material and preparation method thereof

Abstract

The invention discloses a bridge deck waterproof material, which is characterized in that it is composed of a liquid component and a powder, and the liquid component includes the following components in parts by weight: 10-15 parts of acrylic polyurethane emulsion, asphalt Modified waterproof emulsion 8‑12 parts, carboxyl-terminated liquid fluororubber 3‑5 parts, N‑(3‑acryloyloxy‑2‑hydroxypropyl)‑3‑aminopropyltriethoxysilane modified vegetable oil 2 -4 parts, 0.1-0.3 parts of initiator, 70-80 parts of water, 0.5-1.5 parts of emulsifier; the powder is made from the following components in parts by weight: 80-90 parts of cement, silica sand 15-25 parts, 3-5 parts of corundum, 1-3 parts of nano-boron fiber, 1-2 parts of functionally modified aluminum metal organic framework; the mass ratio of the liquid component to the powder is 1:(3-5). The invention also provides a preparation method of the bridge deck waterproof material. The bridge deck waterproof material provided by the invention has good water resistance, good aging resistance and durability, strong adhesion with the bridge deck, excellent high temperature resistance and performance stability, and long service life.

Description

technical field [0001] The invention relates to the technical field of waterproof materials, in particular to a bridge deck waterproof material and a preparation method thereof. Background technique [0002] With the rapid development of highways, especially highways in our country, the number of highway bridges is increasing day by day, and various bridges have sprung up like mushrooms after a rain. landscape. At the same time, the safety and service life of bridges have attracted extensive attention from domestic and foreign counterparts. [0003] At present, during the use of the bridge deck in the road, in the rain and snow weather, the rainwater reaches the surface of the cement concrete through the asphalt concrete surface. Due to the poor waterproof effect of the concrete, the water continues to penetrate into the interior of the cement concrete of the bridge deck, and it freezes at low temperature outside. During the thawing period, due to the frost heave effect of...

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Problems solved by technology

However, the temperature stability of the unmodified asphalt layer is poor, it is easy to be brittle in winter, and it is easy to soften in summer; it has poor aging resistance and durability is not easy to guarantee; the maintenance of flatness is poor, not only the settlement deteriorates the flatness, but also the softening of the material is easy to form ruts, The appearance of these quality defects greatly shortens the service life of the pavement