This standard is issued under the fixed designation C ; the number immediately 1 This test method is under the jurisdiction of ASTM Committee C09 on. ASTM C/CM: Standard Test Method for Determining Age at Cracking and Induced Tensile Stress Characteristics of Mortar and Concrete under. Buy ASTM C TEST METHOD FOR DETERMINING AGE AT CRACKING AND INDUCED TENSILE STRESS CHARACTERISTICS.
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The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. The data of up to 5 rings are digitally transferred to the data-logger. Data logger with an interface for up to 5 rings S No special PC software is necessary. Two temperature channels and a mixed temperature-humidity channel are astk.
Historical Version s – view previous versions of standard. So you can easily integrate it into local intranet.
Shrinkage Ring – Measuring the Restrained Shrinkage | Qualitest
The logger has a network interface Ethernet. Inner diameter mm, height mm. The procedure can be used to determine the effects of variations in the proportions and material properties of mortar or concrete on cracking due to both drying shrinkage and deformations caused by autogenous shrinkage and heat of hydration.
Network interface and built in WEB-Server, software pre-installed. This test method covers the laboratory determination of the age at cracking and induced tensile stress characteristics of mortar or concrete specimens under restrained shrinkage. The age at cracking and the rate of tensile stress development in the test specimen are indicators of the materials resistance to cracking under restrained shrinkage cited from the standard.
With a standard web-browser software you can readout the data and visualize it. The data are visualized online graphical and numerical on the screen. Actual cracking tendency in service depends on many variables including type of structure, degree of restraint, rate of property development, construction and curing methods, and environmental conditions.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Schleibinger Testing Systems
Measurement Principle A sample of freshly mixed mortar or concrete is compacted in a circular mold around an instrumented steel ring. October 18, These variations can include, but are not limited to, aggregate source, aggregate gradation, cement type, cement content, water content, supplementary asm materials, or chemical admixtures. Warning —Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure.
It is the responsibility of the user of this standard to establish appropriate safety, c15881, and environmental practices and determine the applicability of regulatory limitations prior to use. So you can easily integrate it into local intranet. A data-logger supplied with the system records strain gage data and store it in the logger as standard ASCII files. A sample of freshly mixed mortar or concrete is compacted in a circular mold around an instrumented steel ring.
This test method covers the laboratory determination of the age at cracking and induced tensile stress characteristics of mortar or concrete specimens under restrained shrinkage. For more information about Shrinkage Ring – Measuring the Restrained Shrinkageplease call us at 1. Data Logger – Order Code: The specimen is cracking after 6. Please download it here! Base made of PP. Optional a synchronous registration of temperature and humidity of a balance is possible.
Ring for covering the specimen. Cracking of the test specimen is indicated by a awtm decrease in the steel ring strain. Outer ring made of stainless steel. The compressive strain developed in the steel ring caused by shrinkage of the mortar or concrete specimen is measured with 4 strain gages from the time of casting.
Serial digital SMB bus interface to the data logger S The logger has a network interface Ethernet.