23 Questions 102 Answers 0 Followers
Questions related from Mohammad Nadeem Akhtar
The typical failure modes of cylindrical samples in splitting tensile strength and beams in flexural strength were observed. It has been found that the sample of the mixes with 100% OPC was split...
10 November 2022 5,179 4 View
I tested my compressive strength samples at 3, 7, 28, 56,91, 182, and 360 days for standard concrete and recycled aggregates concrete. Up to 56 days, standard concrete samples behave better than...
09 February 2022 2,195 7 View
Scientific discussion
10 December 2021 9,517 10 View
Need expert suggestions
07 September 2021 7,665 8 View
We did a splitting tensile strength test on our design mix concrete and our instrument, giving us results in load vs displacement. We can find out stress by the analysis given by ASTM...
01 September 2021 3,302 4 View
Need expert discussion
09 August 2021 3,989 11 View
In our tested samples of design mix concrete 56 and 91 days, compressive strength was found less than 28 days result. It may be an instrumental error or any other factor. Need expert discussion on...
04 August 2021 2,646 31 View
For durability purposes which one is best to replace OPC in concrete flyash or silica fume
27 July 2021 8,939 20 View
We did a splitting tensile strength test on our design mix concrete and our instrument giving us results in load vs displacement from load we can find out stress by the analysis given by ASTM...
15 July 2021 573 1 View
We tested the samples of sustainable concrete with partial replacement of OPC by silica fume and found an excellent effect on compressive strength increment and slight increment in STS
07 July 2021 4,676 27 View
We are working on the strength characteristics for the new design mix concrete at 3, 7, 28, 56, 91, and 360 days. To know the actual compressive behavior, each design mix concrete at different...
24 June 2021 7,646 7 View
We are testing the durability characteristics of novel design mix concrete. For durability characteristics of concrete at elevated temperature is our next target. We have gone through the past...
15 June 2021 8,934 15 View
Discussion please
09 June 2021 10,009 17 View
For the performance of concrete and mortar in crushed ice and ice cooling water,,, kindly suggest standard code if anyone regarding this performance
20 May 2021 8,965 9 View
We need to buy the Rapid Freeze-Thaw Cabinet for our LAB, which is used to measure the resistance of concrete to deterioration caused by repeated cycles of freezing and thawing in water. Kindly...
05 May 2021 8,075 3 View
We are trying to develop sustainable cement sand mortar incorporating fine waste materials. To know the actual comparison of prepared and reference samples. What is the standard criterion??
03 May 2021 3,215 6 View
We are trying to develop sustainable, cost-effective concrete; as far as concern, the compressive strength we reached required strength. What is the other critical parameter for replacing the...
27 April 2021 837 32 View
To maintain the same bach of materials throughout the project work, we use 150 mm diameter and 300 mm height cylinders. Is it allowable by the standards if we will use the same sample size for...
22 April 2021 642 13 View
Kindly suggest a standard test method of Freezing and Thawing for concrete and the instrument specification for the freeze-thaw cycle
20 April 2021 1,591 7 View
I am testing my project samples for different design mixes, i.e., 3 samples of each mix. One sample from each mix gives very high strength compared to the other 2; all precautions were taken while...
05 April 2021 1,899 13 View
We are trying to add nanoparticle power waste material in sustainable concrete, so we want to see any leaching effect of this material. Need suggestions and discussion from experts.
01 April 2021 7,858 15 View
Doing experiment on different materials mixed with fly ash e.g sand, coarse sand, stone dust, river bed materials, and cement. I want to calculate the porosity of composite material.
07 June 2014 6,508 22 View
I have experimental data and need to write the experimental error.
20 March 2014 9,426 16 View