Construction of the original membrane liquid bitumen with polymers to improve cement plaster layer for the floor has no roof above the insulation board.
I. PREPARATION
Mixer for cement-sand
Tools or devices for the waterproofing where necessary.
Materials: Cement PC 40 or PCB 40
Cat: Be prepared to remove materials larger than 5mm and impurities.
Sika products: Sika proof Membrane: bitumen waterproofing membrane covered elastic
Sika Latex: synthetic rubber emulsion used as additives to cement for the need waterproof and good adhesion.
Antisol E or Antisol S: curing compounds to the surface construction mortar Sika Latex.
Sika Primer 3: used as the connection between concrete and polyurethane sealant.
Sika flex Construction (J): one component sealant permanently elastic polyurethane sealant is used to stretch the size of the floor when the roof is greater than 3m.
C. Surface preparation
All of weak concrete and compact to be removed by means of mechanical and repair to create a level surface.
Concrete must be clean and dust, oil or other components and have peeling dry prior to Sikaproof Membrane waterproofing layer.
Existing concrete floor roof will be constructed to be waterproof mortar strength not less than 25 Mpa.
Floors should slope roof and gutter are the minimum slope is 1:100. If the class is done to create the slope after concreting, use the grout is mixed in proportion 1 part cement and 3 parts coarse sand (by volume) and a
and 3 parts water to achieve part of Sika Latex surface thoroughly with a minimum thickness of 15 mm and maximum thickness for each layer is 40 mm construction, building layers.
The corner: The corner is done inside of the corner and use as directed mortar Sika Latex mortar made slopes
Cracks: Cracks are not moving / positioning the width of cracks greater than 1.0 mm should be repaired by the following methods:
- Cut "V" with a width of about 25 mm and 12 mm deep minimum
- 1 part cement and 3 parts water mang.Thi Mix 1 part of Sika Latex of a physical layer connections are on the concrete surface. When to make the connection layer is still wet mortar construction Sika Latex flat surface finish.
II. MEMBRANE SIKAPROOF CONSTRUCTION PROCESS:
1. Construction Sikaproof Membrane (mixed with 20-50% water) dry concrete surface by brush or by spraying. Construction density of about 0.2-0.3 kg/m2 for the lining. In the case of hydrophilic surfaces to wet surfaces
first with water.
2. Let the primer dry completely (about 2 hours at 30 ° C) then the first coats undiluted Sikaproof Membrane thick with a density of about 0.6 kg/m2 consumption.
NOTE: In the corners, edges and concrete where the cracks appear to have fixed, should put an extra layer of glass mesh net empty and the assembly should overlap at least 50mm. Mesh must be constructed to grade
Membrane was first Sikaproof dry but still sticky.
3. Membrane coats Sikaproof Monday and three (undiluted) with a density of about 0.6 kg/m2 consumption. Time for the middle class is 2 hours.
4. Latex Mortar Sika waterproofing will be constructed on the top layer Membrane Sikaproof after waiting 2 hours or until completely dry Sikaproof Membrane.
5. Complete waterproof mortar Sika Latex method to remove the background. If not removed, then remove all flat surfaces with steel trowel.
6. After finishing mortar Sika Latex, the surface should be sprayed immediately Antisol class Antisol S or E (for surfaces without further treatment)
Any technical questions about please contact: construction survey - Vietnamese Thai Co., Ltd. Tel: (84.4) 3556 2561- 0983 236 541 (Mr Giang)