จระเข้ เอชเอส เกร้าท์ Crocodile HS Grout

• Develop strength up to 40 MPa within 8 hours.
• High flowable, do not need vibrate.
• No water-bleeding
• No shrinkage-no cracking

Application area

• Grouting rail (Plinth) of high-speed train
• Grouting heavy-duty machine
• Grouting precast concrete column
• Base plate and Bolt anchorage
• Bridge support
• Voids

• Ensure, the substrate must be strong and firm.
• Substrate must be cleaned by water. Free from oil, grease or any loosely adherent material.
• Wet the substrate several hours prior to grouting, the area of cleaned foundation must be flooded with fresh water. Immediately before grouting takes place, any free water should be removed.
• Base plate and bolt must be clean and free from oil, grease scale or paint. Air pressure relief holes should be provided to allow venting of any isolated high spots.
• The formwork should be constructed to be leakproof. This can be achieved between joints by using sealant.

1. Use clean water or drinking water with the amount as the above recommendation
2. Prepare 90% water of total required quantity into mixer. Turn on the mixer and slowly pour Crocodile HS Grout. Stir for 2 minutes.
3. Add 10% of retention water and mix for 30 seconds. It is recommended to use mechanical stirrer with speed between 500-1,000 rpm.
4. Coarse aggregate (if needed) should be cleaned, before add to mixed.
5. Do not add other additives.
6. Should be used within 30 minutes. Do not add more water to the mixed material paste.

1. The area of the cleaned foundation must be wet with water until saturated.
2. Using the mixed Crocodile HS Grout within 30 minutes to gain full benefit of the expansion process. Maximum thicknesses must be not over 50 millimeter in a single layer. Coarse aggregate (size 3/8 inch or 9-10 millimeter) can be added up to 30% by weight (7-8 kg aggregate per 25 kg. grout) when formwork depth more than 50 millimeter.
3. Wet or moist the casting places after set for 3-7 days.
4. Protect the area from vibration, heat, and temperature shock during first 24 hours.

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