Hammad Salahuddin

7 Questions 7 Answers 0 Followers

Questions related from Hammad Salahuddin

What is the effect of curing temperature on mass loss of concrete at elevated temperatures?

can anyone has gone through some research paper or personal experience regarding study of elevated temperature performance of concrete, prepared under different curing regimes... I was looking for...

02 February 2020 5,364 4 View

What is the relationship between electrical resistivity, water absorption, and sorptivity with compressive strength of concrete?

What is the relationship of compressive strength with water absorption, sorptivity, electrical resistivity and ultrasonic pulse velocity (UPV) test? Is this always the case that if compressive...

07 July 2019 8,232 6 View

What are limiting values of water absorption of concrete?

Is there any guideline, or standard which indicates limiting values of water absorption & sorptivity in concrete, which can be used to grade concrete as good, average or poor quality in terms...

07 July 2019 850 8 View

Can we use 4" x 8" cylinder for split tensile test?

I need to test some concrete samples using split tensile test but they are 4" x 8" size. As per ASTM standard, 6" x 12" size is specified. Can anyone please advise, how can we justify the use of...

11 November 2018 2,678 5 View

Can We use one concrete sample for two different tests?

I want to test concrete samples under compression and also to determine water absorption capacity of the samples. Can I use one sample first for water absorption (which includes heating the sample...

07 July 2018 3,336 6 View

What are possible reasons of swelling/expansion in concrete samples?

I recently produced high strength fiber reinforced concrete cube samples in lab. After few minutes of filling the molds, the top surface of samples started swelling with cracks and after 24 hours,...

02 February 2018 8,612 7 View

How to find particle size of powders passing #200 sieve?

Can we use hydrometer analysis to determine particle size of powders passing #200 sieve like marble powder, glass powder etc? Is there any other accurate and easier method? We generally use...

01 January 2018 8,023 4 View