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Questions related to Concrete
I am trying to separate urea in a solution of 2 wt% urea and 10 wt% inorganic salt. The current mobile phase is 95/5 ACN/Ammonium acetate at pH of 4.5 and the detectors are ELSD and UV. The tail...
10 January 2022 9,937 0 View
Hello, I was wondering what are some more concrete examples of baseline imbalances? Thanks
06 January 2022 3,697 2 View
I am working on the interaction of dissolved organic matter with bentonite. I analyzed d-spacing from high-resolution TEM images. I found that the d-spacing of bentonite was decreased after the...
05 January 2022 7,263 10 View
we have a microarray assay with about 600 thousands markers. Illumina Infinium globalscreening-24v3.0 Bead Chip (48 samples) array. The results are like this "rs364728", how to transform the rs...
04 January 2022 9,284 3 View
What are the different national recommendations for UHPFRC concrete, which covers the flexure and shear design equations?
25 December 2021 1,062 2 View
Could you please provide me with a research article on the structural performance of fence wall panels for a house?
23 December 2021 5,862 3 View
Hello Sir I am new to LS DYNA. I know Fortran. How to make mesoscale modeling of concrete in LS Dyna?
16 December 2021 9,713 2 View
Is PCE based superplasticizer good for pozzolana Portland cement in concrete?
13 December 2021 761 3 View
As a part of my PhD thesis, I am developing a UHFRC concrete mix based on locally available materials. After a few trials, I got 7-day compressive strength of concrete around 82 MPa. In the same...
12 December 2021 5,745 9 View
Dear all As it can be seen in the figure, I have two thick-wall cylinders in which the inner cylinder is under incremental pressure. The outer cylinder is made by concrete and gets cracked after...
11 December 2021 6,061 2 View
Scientific discussion
10 December 2021 9,516 10 View
Our execution team casted a raft foundation for an elevated tank, but the compressive results was not satisfactory with only 14 MPa after 7 days. we came up with many solutions but expensive, from...
07 December 2021 9,895 18 View
For internal curing of concrete which is better fine aggregate or coarse aggregate for replacement with presoaked light weight aggregates?
03 December 2021 2,005 11 View
I want to know the mixing of sodium silicate with sodium hydroxide procedure. for 8M we will take the NaOH of 320 gms and mix it with 1 litre of water and we let it to be cool for 24 hours. i...
28 November 2021 2,720 8 View
Dear all, Do you know any paper which provides the results of tension stiffening test at high temperature? I would be happy If you share any article you know. Best Regards.
26 November 2021 7,051 3 View
I am trying to find ASR/ACR potential of micritic limestone when used as a coarse aggregate in asphalt and concrete.
24 November 2021 2,800 4 View
For our master thesis, we are looking for concrete compositions and optimisation of concrete properties to be able to grow mosses on concrete. We made a mortar composition with blast furnace...
18 November 2021 9,585 3 View
I need to define the properties of crumb rubber concrete ( 10%) on the Abaqus software but I couldn't because I did mistake with the cubes . please can you send your data that you used in...
18 November 2021 3,920 1 View
Dear all As it can be seen in the figure, when temperature increase the bar and the concrete expands. I want to calculate the radial expansion (ri,T) of a bar embedded in concrete due to...
14 November 2021 9,832 3 View
Dear all, Do you know any relation between tensile strength of concrete and temperature? I want to calculate the tensile strength of concrete at high temperature by having tensile (or compressive)...
10 November 2021 6,971 4 View
In this research, I am trying to replace the traditional bricks and concrete because these materials have much weight causes increasing the weight of the overall structure.
04 November 2021 8,790 5 View
I am looking for advice about the software to be used which can provide the best presentation and user friendly to draw shear and flexural cracks in concrete beams.
03 November 2021 4,759 6 View
We are currently researching how we could possibly innovate and lessen the cost of UHPC, and we thought to replace fine aggregates with agro-waste such as tobacco. Unfortunately, there are no...
02 November 2021 7,789 7 View
Dear All, Is there any standard methodology to account for the size effect phenomenon observed in materials such as concrete other than ASTM C1683? Best Regards, Hamed
01 November 2021 6,058 2 View