Deluxe Thermocure II Concrete Curing Box (Heats and Cools)

Deluxe Thermocure Concrete Curing Box

Deluxe Thermocure Concrete Curing Box – Advanced Temperature Control for Precision Curing

The Deluxe Thermocure Concrete Curing Box is designed to streamline the curing process for concrete test specimens, ensuring compliance with industry standards. Featuring a recirculating temperature control system, this model is ideal for high ambient temperature applications, offering reliable performance and ease of use in any environment.

Key features of the Deluxe Thermocure include:

• Advanced Temperature Control: The unit comes with precise temperature set buttons, a digital water temperature display (°F or °C), and indicator lights to confirm whether heating or cooling modes are active.
• Field Portability: Lightweight and durable, this Thermocure model is perfect for fieldwork. It allows for true portability and convenience, storing up to 22 concrete test specimens of 6x12in (152x302mm) cylinders at a constant 73° ±3°F (23° ±2°C), even when ambient temperatures range from -10° to 100°F (-23° to 37.8°C).
• Durable Construction: The curing box is made of a tough, insulated, rustproof plastic material, ensuring longevity and durability. It includes a removable galvanized rack for easy cleaning and organization. The gasket-sealed lid features stainless steel hinges and plated buckles with padlock loops for secure storage. Lifting handles on both ends of the box make transportation simple and efficient.

Inside Dimensions: 18 x 54 x 17in (457 x 1,372 x 432mm), Depth x Width x Height

Product Dimensions: 75 x 25 x 21in (1,905 x 635 x 533mm), Width x Depth x Height

Electrical Requirements: 115V/60Hz power supply

Applications and Compliance

The Deluxe Thermocure Curing Box ensures concrete test specimens are stored under optimal temperature and humidity conditions, meeting or exceeding all required standards for curing accuracy. It is compatible with the following testing methods:

• AASHTO M201
• AASHTO T126
• AASHTO T23
• ASTM C192
• ASTM C31
• ASTM C511

Ideal for Various Industries

This curing box is widely used in construction, materials testing, and quality control environments, making it a valuable tool for engineers, technicians, and contractors. Whether you're working on-site or in a lab, the Thermocure provides reliable, industry-compliant results.

For projects where precision and compliance matter, the Deluxe Thermocure Concrete Curing Box is your trusted solution.

THERMOCURE I & II – FREQUENTLY ASKED QUESTIONS

What's the difference between Thermocure I and Thermocure II?

Thermocure I is a heat-only unit, designed to maintain the required curing temperature by providing consistent warmth to concrete test cylinders. Thermocure II is a more advanced model that offers both heating and cooling capabilities, making it ideal for a wider range of environmental conditions. This dual-function design ensures that your cylinders stay within the required temperature range regardless of outside temperatures or the heat of hydration generated by the cylinders themselves.

Which model is best for my testing needs—Thermocure I or II?

The best model for your needs largely depends on your local climate and job site conditions. Thermocure I works well in moderate climates where temperatures don't fluctuate dramatically. However, if you're working in extreme heat or cold, or in environments where the heat of hydration from the concrete cylinders could cause temperature spikes, Thermocure II is the recommended choice. Its automatic heating and cooling system keeps cylinders within the standard temperature requirements regardless of outside conditions, giving you greater reliability and peace of mind.

What standards do both units comply with?

Both Thermocure I and II are designed to comply with ASTM, AASHTO, and CSA standards for field curing of concrete test specimens.

How do Thermocure products help me stay compliant with ASTM, AASHTO, and CSA?

Thermocure units are specifically engineered to maintain concrete test cylinders at the required temperatures and moisture levels throughout the critical curing period. By consistently holding cylinders within the standard temperature range of 73°F ± 3°F, Thermocure helps ensure that your test results accurately reflect the actual strength and performance of the concrete in place—keeping you compliant with industry standards and reducing the risk of failed tests or disputes.

Why is temperature control so important in the first 48 hours of field curing?

The first 48 hours of curing are the most critical period in determining the compressive strength of concrete test cylinders. During this time, the concrete undergoes hydration—a chemical reaction that directly influences how strength develops. If cylinders are exposed to temperatures that are too high or too low during this window, hydration rates are disrupted, leading to inaccurate strength results that don't reflect the true performance of the concrete mix.

Improper temperature control during this period can result in:

• Reported strengths that are higher or lower than actual in-place concrete strength
• Failed test results despite a correct mix design
• Project delays, disputes between contractors and engineers, and costly retesting

By maintaining consistent temperature and humidity, Thermocure ensures you get reliable, repeatable results you can trust and defend.

DESIGN & CAPACITY

How many cylinders can Thermocure I and II hold?

Both Thermocure I and II are designed to accommodate the following:

• 22 standard 6" x 12" cylinders
• 46 standard 4" x 8" cylinders

This generous capacity makes both units suitable for a wide range of project sizes, from smaller residential jobs to large commercial or infrastructure projects.

Are cylinders included with the Thermocure units?

No. Thermocure units do not come supplied with test cylinders. Cylinders must be sourced separately based on your project requirements.

What are the exterior and interior dimensions of each unit?

For detailed dimensional specifications, please refer to the product data sheet. Contact us at sales@coninnco.com or call 518-490-2330 to request a copy.

How much does each unit weigh (empty and fully loaded)?

Weight specifications for both empty and fully loaded configurations can be found on the product data sheet. Please contact us for more information.

Is the unit watertight and weather-resistant for field use?

Yes. Both Thermocure I and II are designed for real-world field conditions. Each unit is fully watertight and weather-resistant, making them suitable for use on active job sites where exposure to the elements is unavoidable.

POWER & PERFORMANCE

What are the power requirements for Thermocure I and II?

Both models require a standard 110V, 60Hz power supply with a minimum 20-amp fuse. Ensure that your power source meets these specifications before operating the unit to avoid electrical issues or tripped breakers.

Can these units be powered with a generator on remote job sites?

Yes. Both Thermocure I and II can be powered by a generator, provided the generator has a minimum output of 2,500 watts per Thermocure unit. If you're running multiple units on the same generator, ensure the generator's total output capacity is sufficient to power all units simultaneously.

How quickly do the units reach the target curing temperature?

To ensure proper temperature stabilization, we recommend filling the unit with water, turning it on, and allowing it to run for a full 24 hours before placing any test cylinders inside. This pre-conditioning period ensures the internal environment is stable and within the required temperature range before curing begins.

What is the highest ambient temperature for use?

Thermocure units are designed to operate efficiently in ambient temperatures up to 120°F. Beyond this threshold, the unit may struggle to maintain internal temperature within the required range.

What is the lowest ambient temperature for use?

The lowest recommended ambient temperature for efficient operation is -15°F. It is critical that the water inside the unit does not freeze. Do not plug in or operate the Thermocure unit if the water in the cooler is frozen, as this can damage internal components and compromise curing conditions.

How do the units maintain consistent temperature during hot or cold weather?

Thermocure II uses an electronic controller that continuously monitors water temperature via a thermocouple. Depending on whether the temperature is too high or too low relative to the set point, the unit automatically activates heating or cooling elements to bring conditions back within range. This automated system reduces the need for manual intervention and helps maintain consistent curing conditions around the clock.

Thermocure I, being a heat-only unit, relies on its built-in thermostat to activate heating as needed. In high-heat conditions, operators may need to manually add ice or cold water to prevent the temperature from rising beyond the unit's ability to regulate.

Is there a built-in thermostat or temperature monitoring system?

Yes. Both units include integrated temperature monitoring and control systems:

• Thermocure I features a built-in thermostat that activates heating to maintain the set temperature.
• Thermocure II uses a thermocouple connected to an electronic controller that automatically regulates both heating and cooling, providing more precise and hands-free temperature management.

TEMPERATURE CONTROL & MONITORING

What temperature range is maintained inside the Thermocure units?

The manufacturer-set target temperature is 73°F ± 3°F, in accordance with ASTM, AASHTO, and CSA field curing standards.

For Thermocure I, be aware that heat generated by the hydrating concrete cylinders—combined with high ambient temperatures—can cause the water temperature to rise beyond what the unit can regulate on its own. In these situations, operators should add ice or cold water to manually bring the temperature back within the acceptable range.

How should I monitor internal temperature?

We recommend using a min/max thermometer or a dedicated data logging device to continuously track internal temperature throughout the curing period. This documentation can be valuable for quality assurance purposes and in the event of any test disputes. Thermocure offers both min/max thermometers and data collection devices—contact us for more details.

What happens if temperatures fall outside the required range?

If temperatures deviate from the required range during the critical curing period, the compressive strength results of your test cylinders may not accurately reflect the actual performance of the in-place concrete. This can lead to failed tests, project delays, and disputes. Consistent monitoring is key to catching and correcting temperature deviations before they impact your results.

Do Thermocure units include any automatic shut-off or alerts for temperature issues?

Thermocure II includes a built-in safety feature that automatically shuts off the heating element when a pre-determined high temperature threshold is reached—set by the manufacturer. This helps protect the unit and the test cylinders in the event of an unexpected temperature spike. Thermocure I does not include this automatic shut-off feature, making regular manual monitoring especially important for that model.

OPERATION & MAINTENANCE

Is any setup or assembly required when the unit is delivered?

Setup is minimal and straightforward. Simply place the unit on a solid, level surface, fill it with clean water, and connect it to an approved power supply. Allow the unit to run for 24 hours before placing test cylinders inside to ensure proper temperature stabilization. A level surface is important—an uneven setup can affect water distribution and overall unit performance.

How can I ensure the longevity of my Thermocure unit?

The most important step you can take to extend the life of your unit is to prevent concrete sediment from accumulating at the bottom of the cooler. Over time, concrete residue can build up and affect the performance of the heating and cooling elements. Regular cleaning after each use will keep your unit running efficiently for years to come.

Are there any routine maintenance or inspection requirements?

Yes. After each use, remove the stainless steel cylinder rack and thoroughly clean out any accumulated concrete sediment from the bottom of the unit. Inspect the internal components for signs of wear or damage, and ensure the thermocouple and temperature controller (on Thermocure II) are functioning correctly before the next use.

What is the typical service life of each unit?

With proper care and regular maintenance, Thermocure units are built to last for many years. The longevity of the unit is largely dependent on how well it is maintained between uses—particularly with regard to cleaning out concrete sediment and protecting the unit from physical damage on the job site.

Are replacement parts available if something breaks or wears out?

Yes. Replacement parts are available.

SHIPPING, WARRANTY, & SUPPORT

Where are Thermocure products manufactured?

Thermocure units are proudly designed and manufactured in the United States, at our facility in Malta, New York.

How are the units shipped and how long does delivery take?

Units are shipped from our Malta, NY facility via LTL (Less Than Truckload) freight carriers. Lead times and delivery durations can vary depending on current inventory levels and your destination. Contact us for an estimated delivery timeline for your specific location.

Do you offer a warranty?

Yes. Thermocure units come with a 1-year limited warranty.

Do you provide technical support?

Yes. Our team is available to assist with any technical questions or issues you may encounter in the field. Whether you're troubleshooting a temperature control issue or need guidance on proper operation, don't hesitate to reach out.

Can Thermocure units be customized for larger projects or unique site conditions?

In most cases, Thermocure units are not customized. However, we understand that every project is different, and we're happy to discuss your specific needs on a case-by-case basis—particularly for large-scale projects requiring multiple units or sites with unusual environmental conditions.