Non-shrink grout
Testing
Test standards used to designate a grout as non-shrink include, but are not limited to:
- [http://www.astm.org/cgi-bin/SoftCart.exe/DATABASE.CART/REDLINE_PAGES/C1090.htm?L+mystore+hktn7982 C1090-01(2005)e1 Standard Test Method for Measuring Changes in Height of Cylindrical Specimens of Hydraulic-Cement Grout]
- ASTM C 1107
Typical characteristics
- Often sets rapidly
- Usually a pre-mix product that needs only to be mixed with [water]
- Includes ingredients to compensate against cement stone shrinkage
- Use of shrinkage-compensating ingredients can result in volume increase over time.
- Has a high strength of over 10,000 psi or near 100 MPa per ASTM C109.
Typical cementitious materials caveats
Despite the use of expanding or shrinkage-compensating ingredients, users are ordinarily cautioned to avoid environments detrimental to the forming of cement stone. These include but are not limited to the following:
- Avoid high wind across the curing surface.
- Avoid high temperatures during the cure.
- Avoid common cement poisons, such as sulphates, acids, etc.
Failure to follow these precautions can adversely affect the quality of all cementitious products.