## concrete sampling

## concrete sampling

(OP)

goog day...

could anyone advise if it is required by existing standards(say ASTM), to get beam samples (and of course, testing) for reinforced concrete walls?..if so, what could be the possible mode of test? one-point? two-point? three-point? what could be our basis if test results are passing?

thank you very much, in advance, for any advise and pointers you could provide...

could anyone advise if it is required by existing standards(say ASTM), to get beam samples (and of course, testing) for reinforced concrete walls?..if so, what could be the possible mode of test? one-point? two-point? three-point? what could be our basis if test results are passing?

thank you very much, in advance, for any advise and pointers you could provide...

## RE: concrete sampling

## RE: concrete sampling

actually, i was wondering if it was requirement since the retaining wall is subjected to flexural loads due to the water or earth it resists...

although, theoretically, we could convert the compressive test result to corresponding flexural or moment capacity by some formula we learned in college...but i just want to know if some books or standards, you know of, thus require such "beam-capacity test"

## RE: concrete sampling

## RE: concrete sampling

## RE: concrete sampling

one thing more, could you advise if you know of some chapter or section of the ACI or ASTM that state the provision for such concrete testing?

on other matters, i am researching on non-destructive method in compressive capacity test... is the reading on the rebound hammer corresponds to the compressive capacity of the concrete structural member or is it a sort of "index" number and be multiplied to a factor to be able to get the actual compressive capacity?...

thank you again and good day to all...

## RE: concrete sampling

For beam testing - try ASTM C1018 (Std Test Method for Flexural Toughness and First-Crack Strength of Fiber-Reinforced Concrete (Using Beam with Third-Point Loading). ASTM C42 (Std Test Mthod for Obtaining and Testing Drilled Cores and Sawed Beams of Concrete).

## RE: concrete sampling

good day...