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https://youtu.be/-MUeEDaQkvI What is Curing of Concrete?? Curing is a process during which a chemical reaction (such as polymerization) or physical action (such as evaporation) takes place, resulting in a harder, tougher or more stable linkage (such as an adhesive bond) or substance (such as concrete ) Why do Concrete Comprehensive Strength Testing required to be Tested at 28 days??   Concrete gain 60 %  -65% of specified strength in 7 days   And 90% of Specified Compressive Strength in 28 days.   So,It is recommended as per IS 456 -2000 to Test verification of Strength of concrete as mentioned above at 7 days & 28 days respectively to checking the variations limit of strengths . We should do proper curing by considering the environmental conditions, type of structural members, atmospheric temperature ?? Maintaining the proper temperature also plays a vital role in concrete as mentioned, it should  not be colder than 5 0 C.  Concrete is kept moist for at least 28 days. Recommend

What is Grade of Concrete .Read More about Mix Design of concrete for better Strength & Durability of your Reinforced Concrete Structures. https://youtu.be/VFrNWSWODl8 https://youtube.com/c/CivilStructuralTechGuruji What is Concrete: It's mixture of  Cement,Sand, Aggregate , admixture with normal water to give Comprehensive strength at specified 7or 8 days Test. What is Grade of Concrete:- The grade of concrete varies greatly in accordance with the changing proportion of its constituent materials. The proportion and the ratio, in which the materials should be mixed together to obtain a certain grade of the concrete, has already been specified by IS 456:2000. The above mixes given in the table are called Nominal Mix. In the era of industrial and infrastructural developments, to cater the need for high strength concrete and overall improvement of the concrete properties, various high strength concrete has been introduced, taking it way more than M100. Video at my youtube #cstec

Practical understanding factors influence choice properties of concrete works Key words :construction rccbuilding,Mix proportion, Aggregate properties,Mix Design,Cube Strength,Grading of materials, Cement,Sand,,stone aggregate,Water Cement ratio, Important Factors to consider for Strength of Concrete 1. For a given workability an increase in the proportion of cement in a mix has little effect on the water demand and results in a reduction in the water/cement ratio. 2. The reduction in water/cement ratio leads to an increase in strength of concrete . 3. Therefore, for a given workability an increase in the cement content results in an increase in strength of concrete. 4 .Age of concrete The degree of hydration is synonymous with the age of concrete provided the concrete has not been allowed to dry out or the temperature is too low. In theory, provided the concrete is not allowed to dry out, then it wil always be increasing albeit at an ever reducing rate. For convenience and f

  What is Vibro Pressing Techniques in Concrete to make strong blocks। civil-structures-techguruji.blogspot.com Abstract The paving blocks are a mixture of cement and aggregates, which using compressive energy blocks.    Paving concrete is a dry concrete category, so it requires block energy in the compaction process. Block energy consists of manual blocks, block presses, and vibropressing blocks. They are pressing blocks to use hydraulics with a strong push of 75 kg/cm2 with a 1, 2, and 3 s durations.  Then the blocky vibropressing method, namely by making variations on the vibrating length between 4-8 seconds and a frequency of 25-50 Hz and pressing 75 kg/cm2. All test specimens with the same volume ratio composition of 1 cement:4 sand:4 crushed stone ash 0-5 mm, and the water and cement ratio are 0.6. The results showed that the manual block and the pressing block did not have a sharp increase in compressive strength even though more blows in the manual bock and increased time in t

  The interesting facts of First two tallest ( super Tallest) Towers in the world.  Know the  interesting facts of  first no two most sought Tallest Sky scrappers Towers in worl d.  The creation of Marvelous Structures to have recognised name & Fame along with money making tools using latest technology in software design and Testing tools.The Spare  & Huge money utilisation, Innovative Work, invested in building,World icon ,Super tallest Towers,Burg Khalifa, Employment generation , revenue increase from investments,d Generation, Failure in effective planning & Structural Design of Shanghai Tower,Regarding occupancy rate, • Hope my videos / Post found interesting/useful please support me  Subscribe & dash Bell icon to get all updates info in construction technology ,rcc , Structural analysis videos my youtube channel website link given below https://youtube.com/c/CivilStructuralTechGuruji

NEVER DO THE MOST COMMON MISTAKES IN RCC SLAB CONSTRUCTION  

 

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  Key Principles a Civil Structural Engineer Civil engineering design establishes the overall concept for the structure. Then, the civil structural engineer does structural analysis to see if the proposed structure, and its materials, will withstand the expected loads and forces.  The Economy & Sustainable  Development of Structures. Create New Acceptable design as specified by local Development Authority. All the loads including Environmental factors, Earthquake factors to be kept in design for High rise and Public , Scientific Buildings