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Calorímetro Isotérmico Calmetrix I-Cal 4000 HPC

SKU: I-Cal 4000 HPC

I-Cal 4000 HPC ("High Precision Calorimeter") is a 4-channel Isothermal Calorimeter. Like all Calmetrix I-Cal isothermal calorimeter models, I-Cal 4000 HPC features a sample size of up to 125ml, which can be used for multiple applications, inclu

Descrição

I-Cal 4000 HPC ("High Precision Calorimeter") is a 4-channel Isothermal Calorimeter. Like all Calmetrix I-Cal isothermal calorimeter models, I-Cal 4000 HPC features a sample size of up to 125ml, which can be used for multiple applications, including R&D and Investigative work on cement, mortar and concrete properties as well as daily QC needs in cement and concrete production.


Variable reference cells make I-Cal 4000 HPC a versatile equipment, making it possible to test cement, mortar and real concrete, or other materials of various types and sample sizes.

I-Cal 4000 HPC's tight temperature control is usitable for tests lasting up to 28 days. Also, I-Cal 4000 HPC is fully compliant with ASTM C1679, ASTM C1702, ASTM C563 and EN 196-11.

Features

- Type of instrument: Isothermal Calorimeter
- Number of test channels: 4
- Suitable for cement paste, mortar or concrete


Examples of use:

- Cement and Concrete Technology
- Cement plant quality control
- Admixture development
- Geopolymers
- Sustainable cements


The ambient temperature around the samples is computer-controlled by Calmetrix's software interface, with precision sensors measuring the heat flow generated by the cement hydration reaction. But the I-Cal HPC line of calorimeters distinguishes itself by its clever design to minimize sensitivity to outside conditions. This means more consistent results, but also a robust performance even in a non-air conditioned environment, a definitive benefit in terms of reproducibility, and cost savings for field laboratories or rooms that are not tightly air-conditioned.

 
Applications:

I-Cal 2000 HPC is well adapted for applications in R&D and Investigative work on cement and concrete properties, as well as daily QC needs in cement and concrete production. Typical uses are:

• heat of hydration measurement as per ASTM C1702
• detection of potential material incompatibility (between cement and admixtures, etc.)
• admixture formulation
• shotcrete accelerator studies
• sulfate optimization
• sensitivity tests on variations in admixture or other material content
• estimation of compressive strength using heat of hydration curves
• determination of activation energy for thermal crack prediction
• sensitivity tests on temperature variations
• mix design optimization and statistical performance analysis​
• test temperatures of more than 50 °C (up to 70 °C), e.g. for studies of delayed ettringite formation
• characterization of supplementary cementitious materials


​I-Cal 4000 HPC is the right isothermal calorimeter for experiments that have the following characteristics:

- curing at any temperaure, and up to 70 °C when needed
- test durations of any length, up to 28 days or even longer
- Heat of hydration testing as per ASTM C1702


Quick Specifications

Operating Voltage: 110 - 240 VAC - 50/60Hz - 50W
Number of Test Channels: 4
Operating Temperature Range: 5 to 70 °C (41 to 158°F)
Temperature Stability: < +/- 0.02°C in laboratory conditions
Software Compatibility: CalCommander on Windows XP or later
Max. Recommended Test Duration: 28 days
Sample Size: up to 125ml / ~340g mortar (12oz.)
Baseline (over 72h*): < 0.05uW/g/h (Drift); < +/- 2uW/g (Random Noise);
Dimensions (LxWxH) - 21.5in x 16.5in x 22in (55cm x 42cm x 56cm)
Weight - 104lb, 47kg

* Baseline is measured at 23 °C for 3 days on a 50 g sample. A straight line is fitted to the power (J/g/s) versus time (h) data using a linear regression procedure. The long term drift is the slope and the baseline noise level is the standard deviation around this regression line.


Specifications



Video: How to use an I-Cal HPC calorimeter



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