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LD cement-based permeable crystalline waterproof coating

product overview LD cement-based permeable crystalline waterproof coating is a powder rigid waterproof material made of special cement, quartz sand, etc. With water, after the material contain active chemical compounds inside the concrete seepage, via the carrier of water in the concrete form of insoluble in water tendrils shape crystals, crystal full of capillary pore and combined with concrete into a whole, blockage inside the concrete capillary channel, so that the concrete density, waterproof.

Numbering:

1023958873083305984

Detail

LD cement-based permeable crystalline waterproof coating
I. product overview
LD cement-based permeable crystalline waterproof coating is a powder rigid waterproof material made of special cement, quartz sand, etc. With water, after the material contain active chemical compounds inside the concrete seepage, via the carrier of water in the concrete form of insoluble in water tendrils shape crystals, crystal full of capillary pore and combined with concrete into a whole, blockage inside the concrete capillary channel, so that the concrete density, waterproof.
Ii. The product meets the standard requirements of gb18445-2012 "cement-based permeable crystalline waterproof material"

No:

The experimental project

Performance indicators

1

appearance

Uniform, no lumps

2

The moisture content %                     ≤

1.5

3

Fineness,0.63mmsieve residue /%           ≤

5

4

Chlorideioncontent/%                      ≤

0.10

5

construction

Add water stirring

Scratch free

20min

Scratch free

6

Folding strength /MPa,28d                 ≥

2.8

7

Compressivestrength/MPa,28d               ≥

15.0

8

Wet substrate bonding strength /MPa,28d

1.0

9

 

Mortar impermeability

Anti-seepage pressure of coated mortar /MPa,28d

Report the measured values

19/5000Anti-seepagepressureratio (coated)/%,28d     ≥

250

Remove the impermeable pressure of coating mortar MPa,28d

Report the measured values

Anti-seepage pressure ratio (coating removal)/%,28d    ≥

 

175

Iii. Performance characteristics
1. Anti-corrosion and acid and alkali resistance can improve the strength of concrete.
2. Inorganic materials, never failing waterproof system, the crystal formed will not be aged.
3. After many years, the crystalline structure can still be activated in the presence of water, and new crystals will be generated. The cracks and pores less than 0.4mm will continue to be compacted or sealed to complete self-repair.
4. The waterproof layer is not afraid of bump and collision, and can bear certain external forces. Even if the coating is damaged, the waterproof performance will not be affected.  
5. It can be constructed on a moist base surface, with excellent performance in construction on the back surface of water, and can solve a large number of leakage problems in the basement.
6. There is no need for leveling and protective layer, saving the construction period, speeding up the project progress, and greatly reducing the overall construction cost.
7, non-toxic, tasteless, no pollution, is to address the reservoirs, canals, ideal engineering waterproof material, such as drinking pool has been hailed as a "significant to environmental protection, to human survival are its excellent waterproofing material".
4. Scope of application
1, widely used in cement mortar, old and new concrete buildings that meet the surface and back surface waterproof, such as: industrial and civil building external wall, basement and roof, toilet bath room, subway, tunnels, Bridges, swimming pool, reservoir, etc.
2. Construction of structural crack (micro-crack), seepage point and hole plugging, and repair of defects of concrete facilities.
5. Construction methods
Basic level processing
The surface of concrete base should be firm and clean, free from oil, dust, floating sand, etc.
Drying of the concrete should be water fully wetting at the grass-roots level, but can not have MingShui, to ensure the penetration crystal through water carrier of the mass to the crystallization clogged pores inside the concrete permeability to achieve.
Brush construction
Strictly control the water cement ratio, according to the powder: water = 1-0. 3-0.36 than the weight of the deployment, mix adequately, there can be little grey ball, coating mixture still 5 minutes (combination reaction), with a little use after mixed. When construction, in cracks, notches, rough surface and other fine structures, to be painted carefully. With stiff bristle brush or other besmear to brush tool, will mix good infiltration crystalline waterproof coating evenly coated with the base surface, brushing direction should be consistent even no puddles, wait for after the first layer of dry solid on the second floor besmear to brush, brush the second wetting with water should be taken before the former coating on the direction of the second coating should be perpendicular to the direction of the first layer of the. General besmear to brush 2-3 times, coating amount is about 1.5 kg / ㎡, the coating thickness should be greater than 0.8 mm.
Dry salting
Dry construction, must be before the initial set of concrete, according to the dosage of 1.2 ~ 1.5 kg / ㎡ in wet powder evenly on surface of concrete, then erased the calender. After final coagulation, check whether there is a defective construction site and timely repair.
maintenance
Correct curing is important to ensure the durability and quality of the coating. In order to prevent surface cracks or powder coating, the coating can be maintained after initial setting, use water spray to spray coating, spray 3-4 times a day, 2 to 3 days in a row, high temperature and dry weather, must increase the number of spray, covering film when necessary. Protection against rain, sand, sun exposure and frost within two days after construction. For the concrete structure containing liquid, it can only be used after three days' curing and two weeks' rest.
Matters needing attention
1, construction temperature control in 8 ℃ to 28 ℃, and if in the case of exposure, high temperature, water must be maintained.
2. The mixture should be used up within 20 minutes, and water should not be added twice.
Packaging, storage and transportation
1. The product is sealed and packaged in plastic drums, which are non-dangerous goods and can be transported safely.
2. The product is stored in a cool and dry place to avoid be affected with damp be affected with damp, stored at 5 ℃ and 40 ℃ temperature.
3. Under standard storage conditions, the shelf life is one year.

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