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How to Use AAC Block instead of Bricks in Masonry Walls?
aviratdhodare
I have used AAC blocks for partition walls but I am not satisfied with their performance. Cracks have been noticed in the walls after taking lot of precautions. We did not face similar problems using clay bricks or solid cement blocks. I couldn't fully evaluate the reasons for the cracks. ShrinkageRead more
I have used AAC blocks for partition walls but I am not satisfied with their performance. Cracks have been noticed in the walls after taking lot of precautions. We did not face similar problems using clay bricks or solid cement blocks.
I couldn’t fully evaluate the reasons for the cracks. Shrinkage of the AAC blocks or differential expansion/contraction due to changes in temperature might be the cause.
I have heard similar complaints from many. If you wish to use AAC blocks, kindly visit few buildings where they have been used and go for a reputed manufacturer.
See lessWhat are the Advantages of Rough Flooring?
aviratdhodare
Such floors are durable. They are economical. They are easy to maintain. They are versatile. They come in a variety of design options. They are sustainable. They are weatherproof.
- Such floors are durable.
- They are economical.
- They are easy to maintain.
- They are versatile.
- They come in a variety of design options.
- They are sustainable.
- They are weatherproof.
See lessWhat are the new technologies in the field of civil engineering?
Komal Bhandakkar
New technology in civil engineering : here I am discussing interesting new technology in the field of civil engineering. Kinetic football 3D modelling predictive software Cloud collaboration Kinetic Road Light transmitting concrete Modular construction asset mapping Self-feeling concrete Thermal briRead more
New technology in civil engineering :
here I am discussing interesting new technology in the field of civil engineering.
Thank you
See lessWhy Sri Jagannath Puri Temple is not producing it’s shadow?
Komal Bhandakkar
Jagannath Puri temple : Here I will tell you the reason behind why Jagannath Puri temple not producing its own shadow. Reason : Jagannath Puri temple has a dome and the shadow of dome always fall on the building itself so that we can't able to see it You can clearly understand from the above pictureRead more
Jagannath Puri temple :
Here I will tell you the reason behind why Jagannath Puri temple not producing its own shadow.
Reason :
I hope you agree with my answer.
Thank you.
See lessStrength of bricks made from red mud+B-Sand/ G-Sand+Cement?
Komal Bhandakkar
Compressive strength of brick made from mud, sand and cement : Compressive strength : Compressive strength of mud clay brick: 1.6 -1.9 MPa Strength of cement-soil mortar:4.19- 6.90 MPa Compressive strength of cement sand mortar:1.67- 4.77 MPa Conclusion : My conclusion based on the research I do reRead more
Compressive strength of brick made from mud, sand and cement :
Compressive strength :
Conclusion :
My conclusion based on the research I do related to the above topic is given below;
The compressive strength of mud-brick increases with increasing cement and sand into it.
Thank You.
See lessWhat is the reinforcement coefficients for concrete wall?
Komal Bhandakkar
Reinforcement coefficients for concrete walls : Following are the different coefficients of reinforcement used for or a plain concrete wall & reinforced concrete wall. For your kind information, transverse steel is not required in plain concrete wall construction. 0.12% & 0.15% vertical steeRead more
Reinforcement coefficients for concrete walls :
Following are the different coefficients of reinforcement used for or a plain concrete wall & reinforced concrete wall.
Thank you.
See lessWhat is drop caisson? Provide details about drop caissons
Komal Bhandakkar
Drop Caisson : Meaning of drop Caisson : The term Caisson is purely related to geotechnical engineering subject. Drop caisson is a type of Pier Foundation which is used in watertight retaining structures used as a bridge Pier. Applications: For repair work of ships Concrete Dam construction InformatRead more
Drop Caisson :
Meaning of drop Caisson :
Applications:
Information about drop caisson :
See lessWhat is difference between Mild steel, HYSD bars, CTD bars and QST bars?
aviratdhodare
Steel reinforcing bars are used to enhance the tensile strength of concrete though concrete is weak in tension, and its because both have the same coefficient of thermal expansion. Also, structural steel is used as such to construct steel buildings, which is more easier in erection and is having lesRead more
Steel reinforcing bars are used to enhance the tensile strength of concrete though concrete is weak in tension, and its because both have the same coefficient of thermal expansion. Also, structural steel is used as such to construct steel buildings, which is more easier in erection and is having less strength to weight ratio compared to concrete. Also steel have 100% scrap value.
MILD STEEL REINFORCING BARS
The mild steel bars are smooth and round in shape having diameter ranges from 6mm to 50mm used for small scale construction works.
Mild steel is also known as low carbon steel having 0.1% to 0.25% of carbon. But mild steel is not considered as an alloy steel though it doesn’t contain other elements in it compared to different steel varieties. As carbon content increases, ultimate strength and hardness will increase, but ductility and toughness decreases. Though mild steel contains very little carbon, it is ductile and weldable but having low strength. Also, mild steel is highly prone to corrosion.
HIGH YIELD STRENGTH DEFORMED BARS
High yield strength deformed bars (HYSD) are manufactured under heat treatment followed by either heat rolled or cold twisted for shaping.
HYSD bars moderately resistant to corrosion and the manufacturing process itself cause surface flaws in it. It is heavily weighted, and its transportation cost is high. Residual stress is high and tensile stress is low in HYSD bars that cause deformation.
THERMO-MECHANICALLY TREATED BARS
TMT bars are having much more advantages than hysd bars and nowadays hysd bars are not using.
TMT bars are having a hardened outer core and soft inner core. These bars are passed through water after they get hot rolled, which makes the surface more firm, and the inner core stays warmer itself. Hence core became more ductile, and no deformation process employed like in hysd makes it more strengthened. TMT bars are having soft ferrite-pearlite core with a hard martensitic rim.TMT bars help to reduce steel consumption to 8 to 11% compared to hysd bars. TMT bars are having more corrosion resistive property and is highly flexible than hysd bars. It is highly earthquake resistant with high tensile strength and low residual strength. TMT bars can absorb about 400 to 600°C of heat and highly fire-resistant.
COLD TWISTED DEFORMED BARS
The specifications related to CTD bars are provided in IS: 1786–1985. They are commonly known as TOR steel bars.
TOR is a kind of high adherence steel. TOR bars have surface deformation formed by twisting the steel after lengthening. This imparts high yield strength to steel and furnishes legitimate proper bondage with concrete.TOR is a type of hysd steel, where the steel bars, subsequent to experiencing the required heat treatment process, are cold twisted and distorted.
QUENCHED AND SELF TEMPERED STEEL
These are very much similar to TMT bars where annealing is the process which is not conducted for QST steel manufacturing. These have adequate quality and malleability. QST steel bars are also having the same cross-sectional material of soft ferrite-pearlite core with a hard martensitic rim as that of TMT bars.
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