Can any one explain me how to study the micro structure of cementetious materials by Scaning Electron Microscopy (SEM)?

I did SEM test by a laboratory. He send the report to me. I am not able to understand how to study that report. Kindly suggest me any information regarding that

10 November 2018 1,082 0 View

What are the new alternative materials to OPC in concrete?

New trends in concreting with alternative binders instead of cement.

07 August 2018 6,528 19 View

What will be the effective length of column, by the usage of stiffeners under Uniaxial compression?

I want to examine the performance of a column under eccentric compressive load, the stiffeners have to provide at both ends of specimen to avoid local failure, the specimen will be examined with...

08 September 2017 8,777 2 View

How to decrease setting times of volume increase concretes?

These are special concretes which the volume will increase when we add some material to concrete. a lot of research to be done regarding this topic. Sodium polyacrylate is the material I am using...

09 October 2016 6,393 4 View

Can i use partial replacement of cement with Calcium bentonite in concrete to increase the strength properties?

09 October 2016 4,265 3 View

What is the relation between consistency of cement and W/C ratio of concrete?

Iam going examine the properties blendened concrete by partial replacement of cement with calcium bentonite. The normal consistency of bentonite is much higher than cement. Can any one help me...

09 October 2016 1,102 5 View

Propose me the best technique to predict hypothetical deflections and crack width of R.C.C column under uniaxial bending?

I am going check deflections and crack widths of a new blended concrete column. I need to compare theoretical values with experimental results to get correlation factor for compression members for...

01 January 1970 1,650 0 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 View

Why Austenite grains in steel show much more twinning than ferrite grains?

It is oftentimes said to be a distinctive metallographic trait that differentiates a fully austenitic and a fully felly ferritic steel without etching that might distinguish between two. Why...

02 March 2021 728 2 View

How Can I bring as much common elements in steel as possible to calculate stable phase(s) in OpenCalphad?

As I was tweaking step-by-step OpenCalphad6 Macros step1.ocm involving phase and thermal property calculation of a High-speed steel, I could not incorporate more than 6 elements in the steel...

01 March 2021 8,840 1 View

How can you bring two structures together to create an adhesive bond in LAMMPS?

I have created an Ice 1h crystalline structure and an Aluminium substrate structure and equilibrated both at 250K. Now I need to bring them together in a way that an adhesive bond is created....

01 March 2021 3,325 2 View

I need to accelerate corrosion in steel parts that are used in a salt-water environment. Is there a technique for doing so?

I have a structure that employs d-ring swiveling tie-downs that corrode during use and become "frozen". I have sample swivel assemblies that I wish to corrode to see if I can free them using one...

01 March 2021 3,739 3 View

Why is my platinum counter electrode getting dirty during electrodeposition?

I am conducting anodic electrodeposition of MnO2 onto a stainless steel substrate, using a platinum strip as a counter electrode. This is done galvanostatically, with the current held between 5...

27 February 2021 1,829 3 View

I am looking for a simple software program to model 3D chemical bonds. The purpose is to generate high-quality graphical abstracts. Any suggestion?

Hello everyone: I am looking for a simple software program to model chemical bonds. The purpose is to generate a high-quality graphical abstract for a top leading journal in the field of...

23 February 2021 8,012 3 View

What kind of steel moulds are used for hot pressing metal powders?

My main concern is that the metal powders should not weld to the mold surface and I should easily be able to eject out the pressed samples. I am looking for alternative for graphite moulds. The...

22 February 2021 2,965 4 View