The invention discloses a wet-laying and pre-laying waterproof roll which is made by the following processes: dipping and
coating a modified
asphalt compound on a blank body, controlling the thickness and
sizing,
coating a membrane, rolling, and the like, wherein the modified
asphalt compound contains modified
asphalt, a
plasticizer, an
antioxidant, a functional auxiliary agent and a filling gent. A preparation method of the waterproof roll comprises the following steps: putting substrate asphalt in a reaction pot, adding a
thickening agent, irregular
polyethylene and
styrene-
polybutadiene-
styrene segmented
copolymer, evenly mixing, heating and stirring for 1.5-2 hours, then reducing the temperature to about 180 DEG C, adding padding, the
plasticizer, the
antioxidant and the functional auxiliary agent into the reaction pot and stirring for 0.5-1h, evenly mixing and modifying, then conveying into a
colloid mill for repeatedly milling to the material, then dipping and
coating the modified asphalt on the blank body, controlling the thickness,
sizing, coating the membrane and rolling, and finally preparing the waterproof roll which has excellent performance and can carry out chemical bonding and physical crosslinking synergism with the concrete, namely, a CPS waterproof roll for short.