How the descending branch of the stress-strain diagram of concrete under uniaxial compression can be determined experimentally?

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Why the temperature stress in a statically determinate structures corresponds to no change in stress resultant?

equilibrium

03 April 2017 6,444 4 View

Do concrete have relaxation?

Exclude the effect of shrinkage

03 April 2017 3,552 4 View

Creep sometime called plastic flow. The internal mechanism of creep may be due to one or a combination or reasons. What are these reasons?

interpretation of creep

03 April 2017 1,596 0 View

In vibration analysis of multi-degree of freedom system, what is the value of the off-diagonal elements of the consistent mass matrix?

Vibration analysis

02 March 2017 8,876 0 View

What is the minimum diameter of longitudinal reinforcement of a column?

how many mm?

02 March 2017 4,252 2 View

Is it correct that the value of the prestressing force which calculated by ACI code and AASHTO equals Aps*fpi?

why these codes ignored the effect of the nonprestressed steel and concrete on this value?

01 January 1970 5,335 9 View

What is the time period required to determine the ultimate value of the intrinsic relaxation for steel strands?

how many hours?

01 January 1970 4,849 7 View

What is the degree of the formula used to determine the depth of compression zone in members subjected to axial load and uniaxial bending moment?

columns

01 January 1970 6,151 12 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

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Which is the most convenient manufacturing software for Additive Manufacturing?

Which tools can be used to generate machine codes for additive manufacturing?

02 March 2021 7,220 2 View

What is the procedure to determine the permeability of concrete?

can anyone help me in this, it will help me with my research work

01 March 2021 834 3 View

Which one is easier and better at modeling slender masonry structures? ANSYS or ABAQUS?

I need to model masonry and reinforced concrete minarets for my MSc thesis. Which one is easier and better at modeling slender masonry structures? ANSYS or ABAQUS? (Or any other program for just...

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Does anyone have the experience of using Taq Man probes in the QIAGEN Rotar- Gene qPCR machine?

01 March 2021 5,311 1 View

Apart from Nanosilica and CNT's what are the other nanomaterials readily available to use in concrete mixture?

Nanotechnology in concrete materials

01 March 2021 3,379 3 View

Is anyone familiar with the cyclic compressive fatigue testing (BS EN 12697 - 25) ?

I would like to get more information on the cyclic compressive fatigue testing (BS EN 12697 - 25) which is typically done for bituminous material in pavement design. Any one can advise on the...

28 February 2021 2,004 3 View

Concrete compressive strength databases?

I am looking for datasets similar to this one: http://archive.ics.uci.edu/ml/datasets/Concrete+Compressive+Strength I am looking for concretes with different types of aggregates (Recycled,...

27 February 2021 6,801 3 View

Does different dilution factors affect negatively on NH3 reading ?

I have a sample of treated water sample & asked to obtain ammonia conc. in sample using a machine with 5-25 ppm detection range. However, upon testing with different dilution factors, all...

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LEDs on Vis Light photo degradation of MB water sol via N doped TiO2 in a mini flume?

Good day to all, I have no experience with light emitting diodes. I am building a glass mini flume to demonstrate the photo degradation of Methylene Blue in water running over self cleaning...

26 February 2021 4,026 5 View