I-Cal 8000 HPC ("High Precision Calorimeter")는 8 채널 등온열량계로써, 최대 125ml의 시멘트, 모르타르 및 콘크리트 샘플에 대한 특성의 R&D와 검사 작업 뿐만 아니라 시멘트, 콘크리트 생산에 필요로 하는 일상적인 품질를 포함하여 다양한 분야에 적용 할 수 있습니다. I-Cal 8000 HPC는 온도를 매우 세밀하게 제어하므로 최대 28일 동안 지속적인 측정이 가능합니다.
I-Cal 8000 HPC는 ASTM C1679와 ASTM C1702, ASTM C563에 완전히 부합니다.
- ASTM C1679 ("Standard Practice for Measuring Hydration Kinetics of Hydraulic Cementitious Mixtures Using Isothermal Calorimetry")
- ASTM C1702 ("Standard Test Method for Measurement of Heat of Hydration of Hydraulic Cementitious Materials Using Isothermal Conduction Calorimetry")
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ASTM C1702 compatible
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High temperature testing (upto 50 °C)
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Fixed (internal) reference cells
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Test duration up to 7 days
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8 active sample channels
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High Precision version of I-Cal 8000
I-Cal 8000 HPC는 다른 모든 Calmetrix I-Cal 열량계와 마찬가지로 시료 주변의 온도가 Calmetrix 사의 소프트웨어 인터페이스에 의해 컴퓨터 제어되며, 정밀 센서를 통해 시멘트의 수화 반응 (cement hydration reaction)에 의해 생성된 heat flow를 측정합니다. 이에 더불어, I-Cal HPC 열량계 제품군은 외부 조건에 대한 영향을 최소화하도록 똑똑하게 디자인되었습니다. 이는 보다 일관된 결과를 재공할 뿐만 아니라, 에어컨이 없는 환경에서도 강력한 성능을 나타내고 재현성 측면에서도 확연한 이점을 제공하므로, 냉난방이 잘되지 않는 현장 실험실이나 연구실의 비용 절감을 의미합니다.
Applications:
I-Cal 8000 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
- 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
- studies involving curing times up to 7 days or less
When to consider an I-Cal 8000 HPC:
I-Cal 8000 HPC is the right isothermal calorimeter for experiments that have the following characteristics:
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curing at any temperaure, and up to 70 °C when needed
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test durations of any length up to 7 days
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Heat of hydration testing as per ASTM C1702
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Need for high throughput (e.g. large test matrixes, material characterization, admixture formulation, etc.)
Video:
How to use an I-Cal HPC calorimeter
I-Cal 8000 HPC ("High Precision Calorimeter") is an 8-channel Isothermal Calorimeter. Like all Calmetrix I-Cal isothermal calorimeter models, I-Cal 8000 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. I-Cal 8000 HPC's tight temperature control is suitable for short and long term testing up to 28 days.
I-Cal 8000 HPC is fully compliant with ASTM C1679, ASTM C1702 and ASTM C563.
ASTM C1679 ("Standard Practice for Measuring Hydration Kinetics of Hydraulic Cementitious Mixtures Using Isothermal Calorimetry")
ASTM C1702 ("Standard Test Method for Measurement of Heat of Hydration of Hydraulic Cementitious Materials Using Isothermal Conduction Calorimetry").
Just like for other Calmetrix I-Cal calorimeters, 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.
