10 October 2013 1 6K Report

The paper is not accessible to me from the college library.

More Zhigen Wu's questions See All
What's the difference of tensile young's modulus and compressive young's modulus?

For cement and concrete materials, can the young's modulus be obtained from either the tension stress-strain curve or the compression stress-strain curve? if not, what's the difference between them?

05 June 2015 425 3 View

Can Abaqus model thermal effects on moisture flow under unsaturated conditions?

I spent much time in searching the online documents to figure out if Abaqus can model the thermal effects on moisture flow under unsaturated conditions. Unfortunately, there is no relevant example...

31 December 2014 5,135 5 View

Can anyone suggest a classic/good textbook to learn the theory of plasticity?

To describe material (steel and concrete are of my interest) non-linearity, I would like to learn the theory of plasticity thoroughly. So far, I haven't dug out a good book to read.  Can any one...

31 December 2014 6,007 7 View

What's the typical heat transfer coefficient of concrete (to air)?

It seems that a big range of values to me, and makes me confused. Can anyone clarify it? If you can provide a variety of heat transfer coefficient at different scenarios (different w/c, wind...

31 December 2014 3,630 4 View

What's the annual consumption of concrete in the world?

I tried my best to find the data in 2009, which is 25 billion tonnes [CSI,2009], see attached. Does anyone have more recent data?

03 April 2014 8,829 17 View

What's the drying temperature when drying specimens in an oven to obtain the dry mass for water content calculation?

It seems there is no confirmed answer to this, both 105°C and 80°C were used in the literature.Do you have any standard to support the proposed temperature? Thanks.

01 February 2012 8,068 44 View

Can I inquire the standard ASTM C496-96 from anyone got it? Thanks.

ASTM C496-96 Standard Test Method for Splitting Tensile Strength of Cylindrical Concrete Specimens. This standard can not be downloaded from my college's database. I want it for interest on...

01 February 2012 3,399 5 View

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