Concrete Mix Design With Different Mixes Of Asbestos

Osama Ahmed
Syed Nizam Uddin
Syed Jaffer Ali

In this constructed environment, the rising prizes of building construction materials are the factor of great worry. The coarse aggregates are the main ingredients used in concrete. We all want that our buildings must be strong, stable and should build with the construction material of reasonable prizes. Every construction industry totally relies on cement, aggregates whether it is coarse or fine for the production of concrete.In this research, we have replaced the coarse aggregate partially by using asbestos cement sheet waste. It is a waste material so by using asbestos cement sheet waste as a replacement we can solve the problems of price rising. Therefore, we have planned to prepared some number of cubes using asbestos cement sheet waste at various proportions like 0%, 5%, 10%,15%, 20% and 25% by weight of coarse aggregate.The properties for fresh concrete are tested for compressive strength at the age of 7, 14 and 28 days. It is found that with the increase in the percentage replacement of coarse aggregate with AC sheet waste there is increase in Compressive Strength upto 10 % replacement after that there is decrease in Compressive Strength with further replacement of coarse aggregate with AC sheet waste. It can also observed that 28 days compressive strength is increased by 3.33%, 6.41% upto 10 % replacement of coarse aggregate with AC sheet waste as compared to conventional concrete

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Batching and Mixing of Mortar And Concrete Ingredients

Shubham Sunil Malu

A concrete plant, also known as batch plant is device that combines various ingredients to form concrete. In general, it is a process of combining all ingredients of concrete as per the mix design. Batching and mixing are extremely important parts of mortar and concrete manufactures they influence properties of concrete both in plastic as well as in hardened stages. Also, it is one of the important processes, which is to be done to obtain a quality concrete. Many processes are carried out in various parts of the world with many changes and different equipment. There are various types of batching and mixing equipment and methods that is to say from manual to most sophisticated computerized batching and mixing. Mechanization improves quality of batching and mixing, its speed and thereby can most often result in economy.There are number of factors which are to be considered while doing the process which are discussed in this paper. Moreover, the machinery, which is to be required while making concrete or for batching process and discharging and unloading of the mixture, are also discussed in brief.

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High Quality Cement and its Usage

Shubham Sunil Malu

Concrete is a basic building material that will continue to be in demand far into the future. A world without concrete, and its dominant precursor, Ordinary Portland Cement (OPC), is hard to imagine. Although there are different types of concrete that have been developed for use in different applications, their common virtues are familiarity, versatility, strength, durability, wide availability, fire resistance, resistance to the elements and comparatively low cost.Cement industry is growing at a rapid pace in India and over the globe. Many new brands are available in the market but selection of good cement is very important for an engineer. Many a time construction project fails due to poor quality of cement.

This paper will show you what are the factors affecting the selection of cement and cement strength classification. Also, the quality control of cement and need of consistency of quality in cement. Thus the project, can be secured to extent with the selection of proper quality of cement.

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Compression test on concrete

Shubham Sunil Malu.

With the growth of construction industry there is need to give quality in it. Many of the projects fail in construction field because of improper results and improper testing on site. One of the basic and important test is compressive test which should be done carefully since it is taken as the backbone of all tests of civil engineering related to concrete. Compression test is required almost in every project since it gives us a brief idea of the grade and type of concrete. Many of them do small mistakes in these which includes the different exclusion of different parameters of concrete, improper procedure for filling and compacting concrete, wrong methods of testing of concrete and many more. This paper contains all the necessary parameters, equipment and the acceptance criteria of the test. It also includes procedure for filling and compacting concrete as well as methods of testing of concrete.

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Analysis and Design of Flyover

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Our project deals with the Design of Fly over . The location is at five roads junction at SALEM . which is facing major traffic problems due to the construction. We have done a traffic survey and designed all the structural parts for this Fly over .

The Fly over is of 320 m length with 32 spans, 10 m per span. It consists of a deck slab, longitudinal girders, cross girders, deck beam, pier and foundation. Structural design of one span was made for all the above components. Slab is designed by Working stress method as per the recommendation of IRC: 21-2000, Clause 304.2.1.

Deck slab is designed for maximum moment due to deck action. the T beam designed as the IRC :21-2000. The deck beam is designed as a cantilever on a pier.

The Pier is designed for the axial dead load and live load from the slab, girders, deck beam.Foundation designed as footing for the safe load bearing in the soil. All the elements are designed by using M15 grade concrete and Fe415grade steel. Designs are based on Working stress and Limit state method as per IRC: 21-2000 and IS: 456-2000.

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