PT cable broken and exposed from slab edge ( why the king wire). ?

For post tension concrete slab, if strand cable blow out but and the central (king wire) exposed more than the other 6-wire strand, what this mean? The usual case that all 7 wire strand will be...

03 April 2019 3,247 3 View

In Post Tension continuous beams 9" Slab thick, in case one cable cut or damage, how far the cable will goes out of slab edge?

05 June 2016 2,486 7 View

In Post Tension continuous beams 9" Slab thick, how far will the cable goes out of slab edge?

05 June 2016 8,317 0 View

In Unbonded POST tension girder beam with 250 cables stressed to 70% fu, if I've got the elongation of stressed cables, what this lead to ?

if I have the elongation for each cables, its correct that the average of the elongations will be considered as girder elongation value, then I can calculate the fps for the girder. I know that...

05 June 2016 8,700 5 View

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 View

Is there any effect of different colours of light (white, red, yellow, blue etc.) on the rate of photosynthesis? If yes, why?

Light is inevitable for the process of photosynthesis reaction. Naturally sunlight plays the vital role for this process. Light may be of different colours like white, red, yellow, blue etc....

02 March 2021 7,890 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...

01 March 2021 736 3 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

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

In an eye with Tyndall, does each dot correspond to an individual cell?

When you observe the presence of Tyndall in an inflamed eye: Does each of the small floating dots correspond to an individual cell or to an aggregate of cells? Does a conventional slit lamp have...

27 February 2021 6,326 2 View

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

What is the best way to calculate the angles of twist for concrete columns subjected to torsional moment using finite element software?

In Finite element software like ANSYS , there is difficulty in obtaining direct results of twisting of concrete members because SOLID65 which is the unique element designed to represent concrete...

26 February 2021 3,806 2 View

Compute for the total volume of concrete needed for the concrete pouring of the foundation including its column up to NGL only as shown in the plan?

Looking for the quantity of cement, sand, and gravel of footings and columns. Thank you!

25 February 2021 3,092 2 View