Aim To determine volume of concrete per batch, where nominal maximum size of aggregate does not exceed 38 mm. Apparatus Balance – Sensitive to 0.01 kg Tamping bar – Length 38 cm, Weight 1.8 kg Cylindrical mould – Dia = 250 mm, Height = 280 mm, Capacity = 0.01m3 Step by Step Procedure to Calculate … Read more
Concrete flooring is a common type of flooring adopted by many building owners. Concrete flooring can be used in residential, commercial, institutional & public buildings of all types. Before choosing concrete flooring as an option for your building construction, you should know the advantages and disadvantages of it. Advantages of Concrete Flooring 1. Durability A … Read more
Bricks are the building blocks of a building. If the quality of brick used in a structure is not good then it can lead to serious damages of building. Therefore it is necessary to check the quality of brick before using it in any construction activities. There are some field tests that we can conduct … Read more
It is necessary to check the quality of cement on site at the time of preliminary inspection. It is not possible to check all the engineering qualities of cement on site but there exist some field test which gives us a rough idea of quality of cement. While on site we can perform these field … Read more
Floors are one of the important parts of a house. It should have a pleasing appearance and should attract the attention of people. Floors should also be durable, easy to maintain. If proper care is taken during floor construction then it will have longer life period and will require less maintenance. Precautions to Follow During … Read more
Advantages of Welding Joints No hole is required for welding, therefore no reduction of area. So structural members are more effective in taking the load. In welding extra plates (like filler plates, gusseted plates, connecting angles etc,) are not used, which leads to reduced overall weight of the structure. Welded joints are more economical as … Read more
Why to Use Clean Sand for Mortar? Contaminated sand will not bind with cement, hence is weakening the mortar. Also sand with high percentage of clay or silt will weaken the mortar, because the clay or silt contains too many fines that needs to be covered by cement for proper binding. Why Use Fresh Cement … Read more
Steels should be stored in such a way, so as to avoid distortion and to prevent deterioration and corrosion. Steels of different classes should be stored separately. Follow the guidelines given below while storing steel on site. Storing of Steel Reinforcement Store bars of different classes, sizes and lengths separately to facilitate issues in such … Read more
While sampling cement from a lot (consisting of a number of cement bags), the lot is divided into a number of sub-lots. Number of sub-lots into which a lot is to be divided is depends upon the weight of the lot. Use the following table while dividing the lot into sub-lots. Weight of the lot … Read more
Packing and Marking of Aggregate Sample Before dispatching, each sample of aggregate is packed separately in such a way so as to prevent loss of any fine material. Use container or sample bag to pack coarse aggregate. Use tight container or closely woven bags to pack fine aggregate and all-in-aggregate; so that there is no … Read more
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