2011年4月12日 · C109 is a laboratory method, but is applicable to mortar. C780 is appropriate for mortar testing for preconstruction and construction evaluation. 2-inch cube molds may be used …

2003年3月12日 · Unconfined compressive strength testing of 2-inch cubes has been specified to follow ASTM C 942. What is the primary difference, if any, than testing to ASTM C 109? The …

2013年5月15日 · I am trying to find out if ASTM permits the use of pad caps when breaking mortar cubes during compressive strength testing. My office recently aquired a high profile …

2015年6月1日 · In ASTM C109 It says to use a load rate of about .35 t .70 mpa per second and we also found German/Europe standard for cubes that wants 2400Ns ± 200 which is even …

2013年3月19日 · ASTM C1260 Thread starter labboss; ... ASTM C109 vs. C780. gbkxbb; Sep 30, 2011; Concrete Engineering ...

2006年2月23日 · See ASTM C109, section 10.5 . You keep the specimens in the moist room for 20 to 72 hours. If removed from moulds before 24 hours, keep in moist room until 24 hours …

2005年7月20日 · a hollow pipe has threads on the outer surface. Load is exerted on the threads axially thru a flange that turns into the threads. I am calculating the maximum axial load that …

2010年8月19日 · Since C1107 references ASTM C109 as the method of test, check that standard to see if it allows the inserts. I believe it does, but you need to check. RE: C-1107 Brass Molds …

2016年10月26日 · Testing Compressive Strength of High Strength Gypsum used in ASTM C617 by way of ASTM C109 . TTPJC; May 16 ...

2002年12月1日 · Have a bit of a dilemma; contractor is proposing an anchor bolt to F1554 to Grade 55 - straightforward. However, when reviewing the mill cert, the tensile test result is 675 …