HTR Grout is a specialized cement-based grout engineered to deliver exceptional performance in high-temperature environments where conventional grouts fail. Designed for supporting equipment and structural base plates exposed to extreme heat, this unique formulation can withstand temperatures up to 2,400°F (1,316°C) while maintaining structural integrity and dimensional stability. With rapid strength development reaching 4,000 psi in just 24 hours, HTR Grout enables quick turnaround during critical maintenance shutdowns and provides reliable support for industrial equipment operating under severe thermal conditions.
This advanced grout system exhibits positive expansion characteristics when tested per ASTM C 827, ensuring tight contact with equipment bases and eliminating void spaces that could compromise structural performance. Its thermal shock resistance allows for repeated heating and cooling cycles without degradation, making it ideal for applications where equipment undergoes frequent temperature fluctuations. The formulation incorporates air release technology per ACI 351.1 R standards, ensuring proper consolidation and maximum strength development even in challenging placement conditions.
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Key Features of HTR Grout
- High Temperature Resistance
Withstands exposure to 1,000°F (538°C) in 24 hours and up to 2,400°F (1,316°C) after proper curing procedures. - Rapid Strength Development
Achieves 4,000 psi compressive strength in 24 hours, 5,500 psi in 7 days, and 6,500 psi in 28 days for quick equipment startup. - Thermal Shock Resistance
Maintains consistent strength of 5,300 psi through repeated thermal cycling from ambient to 1,000°F temperatures. - Positive Expansion Properties
Exhibits controlled expansion during curing to ensure complete contact with equipment bases and eliminate shrinkage gaps. - Air Release Technology
Incorporates advanced air release system per ACI 351.1 R for superior consolidation and void elimination. - Excellent Bond Strength
Provides 2,500 psi bond strength to concrete substrates for secure equipment anchoring.
Recommended Applications for HTR Grout
HTR Grout is specifically formulated for industrial professionals working with equipment and structures exposed to extreme temperatures. Its unique combination of high-temperature resistance, rapid strength gain, and thermal shock resistance makes it the optimal choice for critical applications where equipment downtime must be minimized and structural performance maintained under severe thermal conditions.
Ideal Applications Include:
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- Coker unit equipment and structural supports
- Kiln and furnace base plates and anchoring systems
- Foundry equipment and machinery supports
- High-temperature processing equipment
- Thermal cycling applications up to 2,400°F
- Rapid turnaround maintenance during shutdowns
- Equipment exposed to repeated thermal shock
- Industrial base plates requiring thermal stability
Technical Specifications – Five Star HTR Grout
Unique cement-based grout for high temperature equipment support up to 2,400°F (1316°C).
6,500 PSI 28-Day Strength
2,400°F Max Temperature
ACI 351.1 R Air Release Tech
20 min Working Time
Air Release Technology per ACI 351.1 R
Thermal Shock Resistance
Rapid Turnaround During Shutdowns
Coker, Kiln & Foundry Applications
Frequently Asked Questions
What is the maximum temperature HTR Grout can withstand?
HTR Grout can be exposed to 1,000°F (538°C) in 24 hours after placement and up to 2,400°F (1,316°C) after a complete 7-day curing procedure consisting of 3 days wet curing followed by 4 days dry curing.
How quickly can equipment be returned to service?
Equipment can typically be brought up to operating temperature of 1,000°F approximately 24 hours after placement. For higher temperatures up to 2,400°F, allow the full 7-day curing procedure before gradually applying heat.
What is the working time for HTR Grout?
HTR Grout has a working time of approximately 20 minutes at 70°F (21°C). For optimal performance, condition the material and work area between 60°F and 80°F (16°C and 27°C).
How much water should be added per bag?
Mix HTR Grout with 3 to 3.5 quarts of potable water per 50 lb. bag. Always add water to the mixer first, followed by the grout powder, and mix thoroughly for 4-5 minutes.
What is the minimum placement thickness?
The minimum placement thickness for HTR Grout is 1 inch (25 mm). For pours exceeding 3 inches in depth, extend with clean, damp coarse aggregate suitable for high-temperature exposure.
How should the grout be cured?
HTR Grout should be wet cured for a minimum of 30 minutes immediately after placement. For applications up to 1,000°F, cure for 24 hours. For temperatures up to 2,400°F, wet cure for 3 days followed by dry cure for 4 days before slowly applying heat.
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