Construction. Integral waterproofing compound for concrete and mortar. Product Description. Product Data. Form. Storage.

Transcription

1 Product Data Sheet Edition _1 Integral waterproofing compound for concrete and mortar Construction Product Description Uses Characteristics / Advantages Product Data Integral waterproofing: based on colloidal silicates with high reactivity. These fine particles will react with the cement hydration by-product, resulting in further reduction of the pore sizes. If water penetrates under pressure, the silicates will then immediately swell and further reduces the pore sizes. It can be used as an integral waterproofing compound or as an mortar enhancer with Sika Render system is suitable for the waterproofing of masonry and concrete structures such as: Tunnels Basements Culverts Canals Water-tanks Inspection-chambers Manholes Swimming pools Ready for use Non toxic Non corrosive Chloride free Non flammable Form Appearance / Colours Packaging Milky viscous liquid 20 kg pails and 200 kg drums Storage Storage Conditions / Shelf Life 18 months from the date of production if stored properly in original, unopened and undamaged sealed packaging in dry conditions. Protect from direct sunlight. Technical Data Density ~ 1.05 kg/litre 1 1/8

2 System Information Concrete Integral Waterproofing System with Integral Waterproofing Dispensing is dosed at 7 litres per cubic metre of concrete with a minimum cement content of 350kg/m3, cement replacements not more than 40% & a maximum water cement ratio of Dry Mix Plant 1. Before batching, check the truck to ensure no water is in the drum 2. Dispense 80 % of the required water together with the water reducers/retarders 3. Add 4. Put in the weighed coarse and fine aggregates, followed by the cement 5. Dose in the water reducers 6. The remaining part of the calculated water shall be dispensed gradually until the targeted slump is achieved Wet Mix Plant 1. Put in coarse and fine aggregates 2. Dispense 80 % of the required water together with the water reducers/retarders 3. Add 4. Add the cement 5. Dose in the water reducers 6. The remaining part of the calculated water shall be dispensed gradually until the targeted slump is achieved Notes: Alternative dispensing sequence can be used provided that the batcher can ensure a homogeneous mix Load sizes do not need to be reduced When is added at the batching plant, no additional mixing is required If is added at the site directly into the concrete truck, rotate the drum at high speed for at least 3 minutes to ensure proper mixing Placing / Finishing Joint Sealing Concrete produced with the requires normal concreting practices for placing and finishing. For basement car parks, dry shake floor hardeners such as Sikafloor -3 QuartzTop can be used without restriction. Although concrete using is watertight, the structure can still leak if proper detailing and care is not taken for the jointing system. Hence, selection of the correct joint sealing system is critical to ensure proper watertightness of the structure. Please refer to Sika white box concept or contact local Sika s representative for further information on the selection of proper joint design solutions. Sika has a wide range of sealing materials that cover almost all joint configurations under the most diverse (and adverse) situations: Construction Joints Movement Joints Special / Difficult Joints Sika Waterbars Sika Waterbars Sika -Fuko SikaSwell Sikadur -Combiflex Sikadur -Combiflex Sika Hydrotite Sikaflex Sika -Fuko Sikaflex 2 2/8

3 Notes Concrete produced using the will produce concrete with a very low permeability. However, the system is not designed as a moisture vapour barrier and should therefore only be specified under the following conditions: No finishing is required A breathable finish such as plaster, quarry tiles, floor hardener, etc. is required If non-breathable finishes such as epoxy, polyurethane flooring systems, vinyl tiles, carpet, etc. are to be applied, a Temporary Moisture Barrier such as Sikafloor -81 EpoCem will be required as an underlay Curing Details Curing As curing affects watertightness of the concrete, care should be taken to ensure proper curing. When concrete has hardened and finishing completed, a curing compound such as Antisol -E or Antisol -90 shall be applied at the recommended rate (refer to the respective product data sheets). Alternatively, traditional curing methods (for example polythene sheets, water spray, ponding or wet hessian) can be used. Typical Test Results Setsco Services (M) Sdn Bhd Report Reference K 2112/YCL & K 2113/YCL K 2133/D/WL Project Name Ready Mixed Concrete Proposed Asean Pacific Institute of Information Technology (APIIT) Kennels on Ready Mix Grade 30 Pioneer Sun-Mix Concrete Grade 30 Grade 50 Control Concrete with OPC (kg/m 3 ) Sand aggregate ratio (litre/m 3 ) Superplasticisers to BS 5075: Part 3 (litre/m 3 ) Plasticiser / Retarder to BS 5075: Part 1 (litre/m 3 ) (1) (2) W / C Slump at 3 minutes (mm) Compressive Strength as per BS 1881: Part 115: 1983 (N/mm 2 ) 3 days 35.0 NT NT days 39.0 NT NT days Water Penetration in mm after 3 days at 5 bars as per DIN 1048: Part 5 Water Absorption in 30 minutes as per BS 1881: Part 122: 1983 (in %) Not Tested (NT) Initial Surface Absorption as per BS 1881: Part 1: 1970 (ml/m 2 /sec) 10 minutes minutes Not Tested (NT) 60 minutes minutes /8

4 Bill of Quantity (Example) Description Unit Quantity Rate Amount (RM) To supply and dispense, Integral Waterproofing Admixtures at the batching plant according to the manufacturer s recommendation m 3 QA QC Procedure To prepare and test 6 cubes for compressive strength as per BS 1881 Part 108 & 116 To prepare and test 3 cubes (150 mm) for water penetration as per DIN 1048 Part 5 set set Note: Soft copy of the Specifier s Guide and Bill of Quantity is available upon request. Please contact Sika s Technical Service Department. Specifier s Guide Material Description The concrete shall be made watertight using the and Sika supplied by Sika Kimia Sdn Bhd or its approved distributor/applicator. admixtures Material Specifications The admixtures used shall be produced by a manufacturer that complies with an approved international quality system such as MS ISO The concrete produced shall meet the following requirements: 1) Cement content: minimum 350 kg per m 3 2) Water cement ratio: maximum ) Maximum cement replacement not more than 40% 4) dosage: minimum 7 litre per m 3 5) Water penetration as per DIN 1048, part 5: < 30 mm 6) Compressive strength at 28 days: As per concrete grade design with a standard deviation of 5 and a margin of 8 N/mm 2 The mix design and dosage of Sika admixtures (Sikament, Plastocrete, if any), shall be approved and finalised after trial mixes have been conducted. Quality Assurance A record of the batched concrete constituents shall be kept by the supplier of the Sika -1 and forwarded to the Supervising Officer as requested. Quality Control As quality control, cube strength tests shall be performed at 7 and 28 days. At random intervals, additional 150 mm cubes can be casted in order to perform water penetration test as per DIN 1048, part 5. The frequency of both tests shall be determined according to site requirements or as per the proposed sampling plan below: For every 1,000 m 3 of concrete batched, 6 cubes shall be tested for compressive strength at 7 and 28 days For every 2,000 m 3, 3 additional cubes shall be made for water penetration test at 28 days as per DIN 1048, part 5 4 4/8

5 Requirements The dispensing, dosing and mixing of the various admixtures for the said concrete shall adhere strictly to the final mix design (after trial mix) and in accordance with batching sequence clearly defined in the data sheet The placing, placing height and compaction of the said concrete shall be in accordance with BS 8110 The curing protection of the said concrete during hardening stage shall be in accordance with BS 8110 The spacing of reinforcements shall be sufficient for aggregates to pass and avoid segregation The formwork shall be clear, soundly constructed and must be grout tight. All this shall be in accordance with BS 8110, including its removal All construction, expansions, crack-induced joints, abutment of old and new buildings, openings such as pipe penetrations and projections, etc., shall be treated with Sika s Joint Sealing materials or approved equivalent, to details approved by the supervising officer All tie-rods must be patched up with a polymer modified mortar or other approved materials. The material and patching shall be proposed by Sika and approved by the supervising officer 5 5/8

6 System Information Sika Render System Sika Render System with Walls Coat Thickness (mm) Cement : Sand Ratio : Water Ratio First 6 1 : 1 1 : 10 Second (wet-on-wet to first coat) 6 1 : : 10 Third (if required) 6 1 : : 10 Finishing (after second or third coat) 6 1 : 1 Water to suit Sand should be sharp, clean and graded 0 3 mm. Soft and rounded sands are unsuitable. Cement should be fresh Portland cement. Floors Coat Thickness (mm) Cement : Sand Ratio : Water Ratio Primer : 1 1 : 10 Consistency Sloppy / Brushable Bonding 10 1 : 1 1 : 10 Plastic Main 28 (minimum) 1 : : 10 Semi-Dry Application Details Dosage Substrate Quality is added to the clean mixing water. The normal ratio of to water is 1 : 10, which is equivalent to approximately 3% of binder content. When using very wet sand, the ratio must be increased to 1 : 8 or in extreme cases 1 : 6. The substrate must be structurally sound and free of all traces, loose and friable material, laitance, oil and grease. The concrete pull-off (tensile) strength must be > 1.0 N/mm 2. Substrate Preparation / Priming Concrete surfaces must be roughened by either hacking, wire brushing, sandblasting, etc. Fixtures, fittings and other protrusions must be removed. Cracks, porous areas and spalling should be cut out and made good. Water infiltration should be stopped with Sika -4a or the water table lowered. Prior to the first coat, apply a primer slurry (water,, sand and cement). Application Instructions Mixing Mix vigorously and then dilute 1 part with 10 parts clean water in a clean container and stir well. This is best carried out by first mixing equal volumes of and water and then adding the remaining water. 6 6/8

7 Application Methods / Tools Walls After mixing to a sloppy consistency, each coat is applied to a thickness of 6 mm by steel trowel. The second coat is best applied when the first coat has begun to stiffen (usually 4 5 hours). After the second coat has been applied and also after the third in the case of 4 coat renders, apply a splatter coat of the same mortar but mixed with plain water. This will provide a key for the final coat. Intermediate coats should not be scratched to form a key. The final coat should be finished with a wooden float to avoid unnecessary laitance. First Coat 1 : 1 Dry mix by volume, equal parts of cement : sand and pass through a 3 mm sieve. Add mixture. Second Coat 1 : 1.5 Dry mix at the ratio of 1 : 1.5 cement : sand, by volume before passing through a 3 mm sieve. Add mixture. Third Coat 1 : 2.5 Dry mix at the ratio of 1 : 2.5 cement : sand. Add Sika-1 mixture. Finishing Coat 1 : 1 (after second or third coat) Dry mix by volume, equal parts of cement : sand, without. Mortar finished with wooden float. Floors Normally carried out in 2 coats with the addition of a primer (water,, sand or cement) brushed well into the surface and followed by: Bonding Coat 1 : 1 Dry mixed cement : sand with mixture added to form a plastic consistency. Main Floor Coat 1 : 2.5 Lay semi-dry to a thickness of not less than 28 mm onto the still wet bonding coat and tamped vigorously until moisture rises to the surface. Finish with a wooden float. Joint Careful attention should be paid to all joints. Each coat must be stepped back 100 mm from the previous coat. Angles The first and second coat of the wall render are carried down and onto the floor by 200 mm and 100 mm respectively and then treated in the normal way as joints. Corner fillet = mortar 1 : 1. 1 st Coat Bonding Coat Main Floor Coat 2 nd Coat 3 rd Coat Finish Coat Primer Cleaning of Tools Clean all tools and application equipment with water immediately after use. Hardened and/or cured material can only be removed mechanically. 7 7/8

8 Value Base All technical data stated in this Product Data Sheet are based on laboratory tests. Actual measured data may vary due to circumstances beyond our control. Health and Safety Information For information and advice on the safe handling, storage and disposal of chemical products, users shall refer to the most recent Material Safety Data Sheet (available upon request) containing physical, ecological, toxicological and other safety-related data. Construction Legal Note The information, and, in particular, the recommendations relating to the application and end-use of Sika products, are given in good faith based on Sika's current knowledge and experience of the products when properly stored, handled and applied under normal conditions in accordance with Sika s recommendations. In practice, the differences in materials, substrates and actual site conditions are such that no warranty in respect of merchantability or of fitness for a particular purpose, nor any liability arising out of any legal relationship whatsoever, can be inferred either from this information, or from any written recommendations, or from any other advice offered. The user of the product must test the product s suitability for the intended application and purpose. Sika reserves the right to change the properties of its products. The proprietary rights of third parties must be observed. All orders are accepted subject to our current terms of sale and delivery. Users must always refer to the most recent issue of the local Product Data Sheet for the product concerned, copies of which will be supplied on request. Sika Singapore Pte Ltd 200 Pandan Loop, Pantech 21 Singapore SINGAPORE Sika Kimia Sdn Bhd Lot 689 Nilai Industrial Estate Nilai, Negeri Sembilan DK MALAYSIA Phone: Fax: info@sg.sika.com Phone: Fax: info@my.sika.com 8 8/8