1 Scope
This standard specifies the terms and definitions, raw material, requirements, test methods, test rules, package, sign, transport and storage of cementitious grout.
This standard is applicable to cementitious grout used for equipment foundation secondary grouting, foundation bolt anchoring, concrete strengthening and mending etc.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding correction) to, or revisions of, any of these publications do not be applied. However, the parties whose enter into agreement according to these specifications are encouraged to research whether the latest editions of these references are applied or not. For undated references, the latest edition is applicable to this standard.
GB 175 "Portland Cement and Ordinary Portland Cement"
GB 191 "Packaging-Pictorial Marking for Handling of Goods"
GB/T 6003.2 "Test Sieves of Perforated Metal Plate" (eqv ISO 3310-2: 1990)
GB 8076 "Concrete Admixtures"
GB 12573 "Sampling Method of Cement"
GB/T 14684 "Sand for Building"
GB/T 17671-1999 "Method of Testing Cements-Determination of Strength" (idt ISO 679: 1989)
GB/T 50080 "Standard for Test Method of Performance on Ordinary Fresh Concrete"
GB 50119-2003 "Code for Utility Technical of Concrete Admixture"
DL/T 5150-2001 "Test Code for Hydraulic Concrete"
JC 476 "Expansive Agents for Concrete"
JGJ 63 "Standard for Water of Mixing in Concrete"
JG/T 3033 "Mortar Mixers for Testing"
3 Term and Definition
For the purposes of this standard, the following term and definition apply.
Cementitious grout
Dry mixing material made up of cement, which is its basic material, adequate fine aggregate and a small quantity of concrete admixture and other materials, after water mixing, it will possesses performances of high fluidity, early strength, high strength and microdilatancy.
4 Raw Materials
4.1 Cement
Portland cement or ordinary portland cement should be adopted and the requirements of GB 175 shall be met. For other adopted cements, the requirements of the corresponding standards shall be met.
4.2 Fine aggregate
The type Ⅰ natural sand or manufactured sand specified in GB/T 14684 shall be met.
4.3 Concrete admixtures
The concrete admixture shall meet the requirements of GB 8076 and JC 476.
4.4 Other materials
shall meet the requirements of relevant standards.
