2, waterproofing project with all types of materials should meet the quality standards and design requirements.
3, grass-roots requirements
(1) grass-roots level (leveling layer) surface flatness should not be greater than 5mm, said no loose, sanding, peeling phenomenon. Plane and protruding object connection or yin and yang corners and other parts of the leveling layer should be smoothed into a circular arc and meet the specifications or design requirements. Waterproof layer before operation, the grass-roots level should be clean and dry.
(2) slope should be accurate, drainage system should be smooth.
4, detail construction requirements
Generic detail construction treatment should meet the design requirements, there shall be no leakage phenomenon. Basement waterproofing layer paving membrane lap joints, should be covered with pressure strip, strip edge should be sealed tight.
5, coil waterproofing layer requirements
Paving process should be in accordance with standards, specifications and design requirements, coil lap width is accurate, tight seams. Flat elevation coil and lap parts of the coil paving surface should be flat, no wrinkles, bubbles, warping, joints are firm and tight.
6, coated waterproof layer requirements
(1) coating thickness must meet the standards, specifications and design requirements.
(2) membrane waterproofing layer should not have cracks, peeling, bulging, uneven thickness or stacking, exposed tire and wrinkled skin and other phenomena.
7, sealing requirements
Sealing parts of the material should be tightly bonded grass-roots level. Sealing treatment must meet the design requirements, embedded filling, smooth surface, straight. No cracking, warping, no bubbling, cracking and other phenomena.
8, rigid waterproofing requirements
(1) in addition to waterproof concrete and waterproof mortar materials should be in accordance with the standard provisions, additives and pre-buried parts should be in accordance with relevant standards and design requirements.
(2) waterproof concrete must be dense, its strength and impact resistance level must meet the design requirements and relevant standards.
(3) rigid waterproof layer thickness should meet the design requirements, its surface should be flat, no sand, no cracks; fine stone concrete waterproof layer within the reinforcing steel position should be accurate. Compartmentalized joints to do straight, correct position.