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HM-239 Portable Beam Tester transports and sets up easily for rapid field checks of 6x6in (152x152mm) concrete beam specimens with minimum length of 20in (508mm). Conversion between third-point and center-point flexural loading configurations is quick and easy. The hydraulically loaded unit does not strictly comply with ASTM/AASHTO requirements, but results compare favorably with more expensive machines meeting the standards.
Upper bearing assemblies are provided for both center-point and third-point loading. Third-point assembly bearing points are 6in (152mm) center-to-center. Elastic bands hold the assemblies in raised position for easier specimen placement. Lower bearing points on the load frame are 18in (457mm) on-center and pivot as the test beam deflects. The manually-operated pump assembly with 6in (152mm) diameter gauge is attached by a 4ft (1.2m) quick-disconnect hose to the hydraulic cylinder and load frame. The high-quality, direct-reading gauge features ±0.25% accuracy, and is graduated from 0-1500 psi.
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