Cement-based, Non-shrink Grout for Structural & Equipment Grouting [SAES-Q-010] – Civil QC Notes

This requirements and guidelines for cement-based, non-shrink grout used for structural and equipment grouting, likely within a particular industrial or construction.

Cement-based, Non-shrink Grout

Here’s a summary of the key points:

Ingredients:

• Site-mixed grout can use clean, well-graded sand that meets specific requirements.
• Type V Portland cement (as defined by ASTM C150) should be used.
• Potable water should be used for mixing and curing.

Compressive Strength:

• The minimum 28-day compressive strength requirement for the grout is 13.8 MPa (2,000 psi) when true non-shrink characteristics are not mandatory.
• When the water/cement ratio is 0.4 or less, the minimum 28-day compressive strength requirement is higher, at 34.5 MPa (5,000 psi).

Water Quality:

• The total dissolved solids (TDS) in the mixing and curing water should not exceed 500 ppm.

Curing:

• When the water/cement ratio is 0.4 or less, the grout should be continuously water-cured for a minimum of seven days.
• Curing compounds used should comply with ASTM C309 standards.

Mixture Temperature:

• The specified mixture temperature is 23 degrees Celsius.

These requirements ensure that the cement-based grout used for structural and equipment grouting meets the necessary strength and performance standards. It also emphasizes the importance of water quality, curing methods, and temperature control during the mixing and curing process to achieve the desired results.

SAES Q-011- EPOXY GROUT  FOR MACHINERY SUPPORT

The grout shall meet the physical requirements of Table A.

Table A

Physical Properties	Test Method	Limits
Compressive Strength	ASTM C579, Method B	96 Mpa (14,000 psi) @ 7 days Min.
Tensile Strength	ASTM C307	10.5 Mpa (1,500 psi) Min.
Flexural Modulus of Elasticity	ASTM C580	10.3 x 106 Kpa (1.5 x 106 psi) Min.
Compressive Modulus of Elasticity	ASTM C469	13.8 x 106 Kpa (2.0 x 106 psi) Min.
Creep	ASTM C1181	5.0 x 10-3 in/in (@400 psi and 140°F) Max.
Coefficient of Thermal Expansion	ASTM C531	45 x 10-6/°C (25 x 10-6/°F) Max.
Water Absorption	ASTM C413	0.14% Maximum
Working Time		50 minutes at 32°C (90°F) Min.

1. Storage and Shelf Life:
   • The components of the grout shall not exhibit gelling when stored for the specified shelf life (indicated on the data sheets) from the date of manufacture.
   • Storage conditions should include keeping the components in unopened containers at temperatures of 32°C.
2. Reinforcement Rebars:
   • If the grout pour is 100 mm or deeper, the installation of reinforcement rebars shall follow the recommendations provided by the grout manufacturer. This likely pertains to ensuring structural integrity and strength in deeper grout pours.
3. Mounting Plate Corners:
   • The corners of mounting plates (presumably used in the grouting process) should be rounded to a minimum radius of 50 mm wherever feasible.
   • This rounding is done to prevent stress raisers in the grout that could potentially lead to cracks. Rounded corners distribute stress more evenly and reduce the risk of crack formation.