BNBM Yuwang waterproof coating series products can be divided into polymer waterproof coating, polymer modified asphalt waterproof coating and polymer cement waterproof coating.

WATERPROOF COATING SERIES

Polymer Modified Bituminous Waterproof Coating for Road and Bridge

Waterproof coating ranges

★ Product Description download

According to the physical and mechanical properties, it is divided into type I and type II.

Product Specifications：

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This product is a kind of eco-friendly waterproof coating used for road and bridge; it uses emulsified asphalt as the main material and mixes with a variety of high-quality polymer as composite modifier, and is refined by scientific formula. The coating has excellent heat-resistance and bonding, and shearing properties; and it has good affinity with asphalt concrete which can fully meet the special waterproofing needs of asphalt concrete bridge. The coating has excellent heat-resistance, bonding and salt and alkali resistance, and the high strength elastic coating film formed after construction on the bridge surface can withstand the long-term load movement of the bridge surface, prevent the structure from being damaged by seepage and prevent the concrete from being corroded, which can greatly extend the service life of the bridge surface.

PRODUCT

INTRODUCTION

FEATURES

PRODUCT

Good heat-resistance:
the coating film is kept intact at the high temperature of 160℃ and can resist the rolling of asphalt concrete pavement at high temperature.

①

Strong cold-resistance:
the waterproof layer can bear the structural deformation of heavy load and shear of horizontal load under -40℃.

②

High bonding strength: the coating materials contact with cement alkaline substances will immediately demulsify and solidify, and be infiltrated into the concrete capillary pores to form a unified whole with the substrate.The bonding strength between the coating film and the substrate is greater than its own strength.

③

High elasticity:
the coated film has an elongation of over 800%, and can resist different deformation of the structures.

④

Safety and environmental protection:
It is a water-based coating that is non-toxic and odourless; it is eco-friendly and safe in constructing.

⑤

Simple construction method:
spray method and cold apply, convenient process

⑥

●Before using the material, the coating should be mixed evenly.
●Construction temperature should be 5~35℃.
●The waterproofing layer must be hard dry before paving asphalt.
●Before the coating is dry and before asphalt concrete is laid, avoid trampling or driving.
●Of the expansion joint of the bridge deck, the anti-collision wall expansion joint, and the drainage port and other weak parts, there need to be strengthened waterproof treatment.
2.0~2.3kg/㎡
●Recommended consumption: with a thickness of 1mm, the dosage of type I is 2.2-2.5kg/㎡；the dosage of type II is 2.0-2.3kg/㎡.

Construction Technology

Requirements of the substrate: the surface of the substrate should be firm and smooth. When using cement mortar for level finding, the cement screed coat must be fully maintained. There should be no loose sand, dusting and peeling phenomenon, and it should meet the designing requirements.
The concrete surface should be brushed, milling or shot blasting.
The water content of the bridge deck should not be greater than 15%
Coating construction: The coating should be stratified by appropriately 3~4 times. The next time brushing should proceed after the curing of the previous coating into a film, the brushing direction need to be vertical to the previous time brushing.

Spraying method, brushing method

METHOD

CONSTRUCTION

10000 cycles without breaking

Joint deformation capacity

0.1MPa，30min，impermeable

impermeability after hot rolling

≥0.050

50℃bonding strength/MPa

140℃     160℃
No flowing, sliding or dripping

heat-resistance/℃

Product application properties

I≥0.40   Ⅱ≥0.60

bonding strength between the coating and cement concrete/MPa

0.3MPa，30min，impermeable

impermeability

-15℃    -20℃
No cracking

low temperature flexibility/℃

≥800

elongation at break/%

I≥0.50   Ⅱ≥1.00

tensile strength/MPa

≤8h

hard drying time/h

≤4h

touch drying time/h

I≥45  Ⅱ≥50

solid content/%

I≥0.15   Ⅱ≥0.2

50℃shearing strength/MPa

Physical Index

JC/T975-2005《Waterproof Coating for Road and Bridge》

STANDARD

EXECUTIVE

Daqing Ranghu Road Central Street Overpass

Waterproof Engineering

Waterproof Engineering

Jinjin Expressway Overpass

Waterproof Engineering

Capital Airport Deck

It is suitable for anti-corrosion, anti-seepage and waterproof of bridge and expressway.

FIELD

APPLICATION