Concrete

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Questions related to Concrete

How do I purify my synthesized hydroxyapatite from green mussel shells (sol-gel method)? And how do I measure its purity?

I'm curious about the purity of my Hydroxyapatite, can I ask how you usually purify your HAp products, and how you measure its purity, thereafter?

02 July 2023 7,540 3 View

What is the known europeans standards for the proportions of main components (cement+sand+water) to prepare a cement mortar?

is the following mixture respect the europeans standards? cement => 1 part sand => 3 parts water => 1/2 part

01 July 2023 8,328 4 View

Survey questionnaire with both open and closed ended questions should be considered Quantitative research or Mixed Methods research?

As part of my research I have conducted two survey questionnaires where the first one has closed ended questions and the second one has both closed and open ended questions. My doubt was whether...

01 July 2023 7,773 7 View

Is there any Empirical model to calculate correlation coefficient for effect of molarity ,ca/(si+al )ratio in geopolymer concrete?

How to calculate a,b, c coefficient using si/al and ca/(si+Al ) ratio? Example- ca/(si+al) ratio are 0.1, 0.2 and 0.3 also si/al ratio are 2.5,3.0,3.5,4.0,4.5 "a" coefficient are...

30 June 2023 9,748 1 View

How to know types of failure in ansys autodyn ?

If I have a reinforced concrete wall subjected to blast load and I need to know the type of failure which happened to the wall ? How to know the type of failure using ansys autodyn ?

24 June 2023 8,623 0 View

As we all know that Si 2p peak can be deconvoluted into two peaks such as Si 2p1/2 and Si 2p3/2. Which peak has higher binding energy and why ? ?

In the few literature, it was mentioned that the binding energy of Si 2p1/2 was higher than Si 2p3/2, while some authors made the just opposite statement about these peaks. I am so confused about...

23 June 2023 1,112 2 View

Por que en méxico no se explotan de manera industrial a las Macroalgas ya sean mantos naturales o en maricultivos ? que nos falta?

Como parte de la acuacultura tradicional, el cultivo de algas marinas podría convertirse en una opción atractiva para las poblaciones costeras, puesto que esta muy alejada de los problemas de...

22 June 2023 665 0 View

How to model data with 0/1 output?

I have all in all 600 measurements: 20 subjects x 15 different stimuli x 2 ears (presented in each ear separately). I use 4 different methods to detect whether there is a significant response in...

21 June 2023 6,010 0 View

Why I can not find my paper in research gate in google search ?

I have paper in research gate and I open for every one, but my friend can not find it in google search ?

20 June 2023 1,962 3 View

Theory of cooperation?

cooperation between public authorities including domestic public action, sociology and political science

20 June 2023 5,623 0 View

By using which software I can compare my XRD data with JCPDS ?

Dear Researchers, I need to compare my XRD data with JCPDS files and determine. please suggest me some software or some open database from where I can do this. I would greatly appreciate your help...

19 June 2023 8,239 2 View

Can anyone help me with this question?

Determine the force in member AC of the truss. Draw primary and redundant structures and remove member AC. Use the flexibility method to analyze indeterminate truss structure. AE is constant.

16 June 2023 2,034 1 View

Regarding Concrete technology?

Is there any chances of shrinkage or any other types of cracks formation in concrete if concrete attains its 110% strength in 7 days and little bit increment around 5mpa in 28 days by using...

16 June 2023 4,010 2 View

Can anyone share relevant articles ?

Is there any difference between the study of high temperature and high pressure fractured reservoirs and ordinary fractured reservoirs, what needs to be paid special attention to, and whether...

14 June 2023 8,637 2 View

Related to Concrete technology?

Can anyone please clear my one doubt sir, Is it good or not if concrete attains its full 100% strength in 7 days and little bit increment around 5mpa in 28 days by using admixtures?/ I have...

13 June 2023 196 15 View

What are effects of rice husk ash sillicate on concrete properties?

Please, I want some article which talk about the RHA effect on geopolymer concrete properties.

12 June 2023 7,440 6 View

How TMT works for steel?

Thermo mechanical treatment of steel consists of cooling the steel re-bars with a water pressure of 20 bar and ambient temperature. A martensite ring is formed. I'm confused about how water at...

11 June 2023 4,702 1 View

Why do coastal areas record minimum variation in temperature of winter & summer & eastern coast of India receives most of its rainfall in winter?

Why do coastal areas record minimum variation in the temperature of winter and summer and eastern coast of India receives most of its rainfall in winter?

11 June 2023 3,533 4 View

How the <n> phase distribute in quasi-2D perovskite polycrystalline thin film?

In quasi-2D perovskite polycrystalline thin film, there are different phase. I want to konw that is there only one n-value phase or multiple n-value phases coexisting in a grain?

11 June 2023 5,978 2 View

Could someone suggest a researcher who has prior experience working with Supercritical CO2 power cycles or in the field of gas power cycles?

I am looking for suggestions from researchers who possess previous experience or specialized knowledge in Supercritical CO2 power cycles or have conducted extensive research in the field of gas...

10 June 2023 8,506 0 View

Could anyone provide some practical LS-DYNA models for learning?

10 June 2023 6,823 1 View

How do intraspecific interactions affect species responses to global change?

10 June 2023 9,674 0 View

Construction Waste Management & Digital Twin Technology- Need help to Narrow down my Research Area. Which Topic/Area would be helpful for me?

I plan to research "Construction Solid Waste Management using Digital Twin Technology." However, I'm still a bit confused about narrowing down my research area. A few key areas come to mind, such...

08 June 2023 7,950 0 View

What can be the latest research gaps that need to be covered in 3D printing in construction field?

Kindly mention you points.

08 June 2023 761 3 View

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