Windsor® Probe Driver Unit and Single Probe Template We are very pleased that the ASTM committee has enacted our recommendations to the standard”, says Michael Hoag President of James Instruments Inc. “At James, interesting, safe and reliable operation of our equipment is always our primary concern. The Windsor® Probes corresponds to ASTM Standard C-803, ACI International reports 228.1R-03 and ACI 228.2R13, and British Standards Institute 1881 Part 207. This certification was made by Safenet Limited of the United Kingdom. The Windsor® Probe - Test System ™ has been certified to be in compliance with EU Directive 2006/42/EC. Monitor the strength for rehabilitation as concrete agesĬonform to ASTM C-803 and other official tests Safety: no accidental discharge and no recoilĭetermination of the developing strength of concrete improves safety, ensures quality and reduces -missing word here. Memory for data storage and uploading to PC An electronic measuring unit has been added to help ensure proper test results which can be recorded for later review or uploading to a personal computer.Įlectronic measuring system enhances accuracy and efficiency It has been ruggedized for use in the construction environment, yet refined to provide the user with a simpler system to operate. Improved and enhanced over forty years, this modern system is capable of measuring concrete with a maximum compressive strength of 17,000 PSI (110 MPA). The Windso® HP Probe™ system rapidly and accurately determines the concrete compressive strength of a structure by driving a probe into the concrete with a known amount of force. It also includes a provision stopping the probe from completely leaving the system without disassembly.This makes the entire operation intrinsically safer, even if there is a failure in the material being tested. These features include a larger single probe firing template than was previously part of the system to protect the user from debris. These are important as the amount of force used to drive a probe into concrete to test it is hazardous. Safety features have also been incorporated into the standard. Thereby assuring the end user that a system made to this standard will be reliable and accurate. These clarifications encompass the detailed knowledge that has been amassed from use of the test system for the last fifty years. Drawings are included which detail not only size and shape, but also tolerance values of the probes. The clarification of the probe design is one of the features of the revision. In fact, they have improved the systems safety and accuracy. Hese major revisions have had no effect on the accuracy and reliability of the test system. The system has been used safely and effectively since the 1960’s and there have only been minor revisions made to the standard. ASTM International committee C09 on concrete and concrete aggregates under the recommendation of sub-committee 64 non-destructive and in-place testing has specified new safety features and direct specifications of the probe used. the worldwide leading manufacturer of non-destructive test equipment for concrete and other construction materials and coarse grained materials, is pleased to announce that the ASTM C-803 has had major positive revisions. This standard now includes details of the type of probe used as well as addressing safety concerns.Ĭhicago Illinois, February 25th, 2019 - James Instruments Inc. The sampling and test methods shall be done with grading and fineness modulus test, organic impurities test, effect of organic impurities on strength test, soundness test, clay lumps and friable particles test, coal and lignite test, bulk density of slag test, abrasion of coarse aggregate test, reactive aggregate test, freezing and thawing test, and chert test method.The Windsor ® Probe Test System ™ for determining concrete compressive strength has had majors changes to the ASTM standard specification covering use and utility. Coarse aggregate shall consist of gravel, crushed gravel, crushed stone, air-cooled blast furnace slag, or crushed hydraulic-cement concrete, or a combination thereof. Fine aggregate subjected to five cycles of the soundness test shall have a required weighted average loss. Fine aggregate for use in concrete that will be subject to wetting, extended exposure to humid atmosphere, or contact with moist ground shall not contain any materials that are deleteriously reactive with the alkalis in the cement in amount sufficient to cause excessive expansion of mortar or concrete. Fine aggregate shall be free of injurious amounts of organic impurities. Fine aggregate shall consist of natural sand, manufactured sand, or a combination thereof. This specification defines the requirements for grading and quality of fine and coarse aggregate for use in concrete.
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