Journal of the Association of Engineers, India

K. K. Banerjee

Abstract

Conventional building materials are heavy and haulage from great distance, which inevitably has to be done for growing cities, has made building materials expensive and scarce More than half of a pucca building is silica and paradoxically this is thrown as waste in vast quantities causing disposal problem for power houses, steel mills, fertilizer and similar industries. The industries are located near cities or they themselves create cities around them and consequently the demand for housing. Hence the logical approach is to process the thrown out silica into building materials and kill two birds at the same time.

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K. K. Banerjee

Abstract

This paper is devoted particularly on the possibility of mechanised construction in this country with occasional reference to the advancement made in the Western countries.

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K. K. Banerjee

Abstract

While in the advanced countries total precasting of building is carried out, in India we have to yet set up the necessary factories required for such large-scale prefabrication. Our handling, transportation and erection facilities are also inadequate and thus we can only think of p art precasting or precasting of building components. Suitable technique to meet our conditions and training of workmen and supervisory staff are again some important pre-requisites. Public acceptance is another important factor which will decide the future of any new construction technique.

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K. K. Banerjee

Abstract

The present trend is concrete bridge construction is to use-prefabricated units to a large extent particularly where repetition is encountered. The trend was first set up by M. Freyasinet in the 40's and considerable development in technique have since then been made particularly in Europe. Greater strength of concrete, saving of formwork and staging and also shortening of construction time are the main advantages obtained. But unlike building components, bridge, elements are very heavy needing heavy haulage and lifting devices for manoeuvre and final placement. Thus in most cases, the units are manufactured in improvised factories set up at or near the site.

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K. K. Banerjee ¹

Affiliations
1 Bengal Engineering College, Sibpur, IN

Abstract

Early in this century Professor F. S. Kipping of England found from the extensive studies he had undertaken that like Carbon, metal Silicon forms pseudo organic compounds which are polymers consisting of skeleton back-bone of alternative Silcon and Oxygen atoms with organic groups such as Methyl, Phenyl or Venyl attached to Silicon. Professor Kipping christened these products as ‘SILICONES’.

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K. K. Banerjee ¹

Affiliations
1 Bengal Engineering College, Sibpur, IN

Abstract

Although the history of concrete dates back to the Egyptian time, precast concrete is a recent development and is considered as the most versatile building material at the present time. In advanced countries, precast concrete components are mass produced in the factories thus effecting saving in material, cost and time of construction of buildings and bridges. Most up-to-date knowledge in cement and concrete is being utilised and various types of cement and aggregates are employed. Various types of machines and equipment have been developed for the precast concrete industry. Particular attention has been very recently paid in producing light-weight concrete products so as to reduce handling, transportation and erection cost which account a considerable proportion of the total cost.

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