كتاب عن تكنولوجيا الخرسانة Concrete Technology : Theory and Practice

Concrete Technology

Theory and Practice









Concrete Technology: Theory and Practice By M.S. Shetty

Preface
Cement mortar and concrete are the most widely used construction
materials. It is difficult to point out another material of construction
which is as versatile as concrete. It is the material of choice where
strength, permanence, durability, impermeability , fire resistance and
abrasion resistance are required. It is so closely associated now with
every human activity that it touches every human being in his day to day
living.

Cement concrete is one of the seemingly simple but actually complex
material. Many of its complex behaviours are yet to be identified to
employ this material advantageously and economically. The behaviour of
concrete with respect to long-term drying shrinkage, creep, fatigue,
morophology of gel structure, bond, fracture mechanism and polymer
modified concrete, fibrous concrete are some of the areas of active
research in order to have a deeper understanding of the complex
behaviour of these materials.

In any country, construction accounts for about 60 percent of the plan
outlay. Out of this, cement and cement product would account for more
than 50 percent. Today in India the annual consumption of cement is in
the order of 22 million tonnes. It is estimated that the cost of mortar
and concrete made from 22 million tons of cement would work out to about
Rs. 4,000 crores which is about 1/5 of the plan outlay for the year
1982-83. It is in this context that the knowledge of concrete technology
assumes importance.

Concrete is a site-made material unlike other materials of construction
and as such can vary to a very great extent in its quality, properties
and performance owing to the use of natural materials except cement.
From materials of varying properties, to make concrete of stipulated
qualities, an intimate knowledge of the interaction of various
ingredients that go into the making of concrete is requires to be known,
both in the plastic condition and in the hardened condition. This
knowledge is necessary for concrete technologists as well as for site
engineers.

The book is written mainly to give practical bias into concrete-making
practices to students of engineering and site engineers, practical bias
needs good theoretical base. Approach to practical solution should be
made on the basis of sound theoretical concept. Sometimes, theory,
however good, may not be applicable on many practical situations. This
is to say, that particularly in concrete-making practices both theory
and practice go hand in hand more closely than in many other branches of
Engineering mainly because it is a site made material.

There are many good books written on this subject. But there are only a
few books dealing with conditions, practice and equipment available in
this country . Moreover, most of the books refer to only British and
American standards. It has been the endeavour of the author to give as
much information as possible about the Indian practice. Indian standard
specifications and code of practices for concrete making. if this book
helps the reader to make better concrete in the field, my efforts, I
feel, are rewarded.

It gives me immense pleasure that the book first published in 1982, has
seen more than 25 reprints. the popularity of this book amongst students
and practicing engineers has given me the encouragement to revise this
book to make it more useful to them. The proposal and encouragement
given by officers of s. chand & company to bring this Sixth Edition
in multicolour should make the book more useful and attractive.

Concrete technology is becoming a major branch of civil engineering. It
is becoming the backbone of infrastructural developments of every
country. it has made tremendous advancement in the western and the
eastern world. Though Indian is lagging behind. We are catching up fast
with the rest of the world.

It can be recalled that in the preface to the first edition (1982) I had
mentioned that the cement production in India was 22 million tons. This
was about eight decades after we first started manufacturing Portland
Cement (1904). It is heart warming to note that in the subsequent two
decades after 1982 i.e. in 2004, the production cement has crossed 120
million tons. Today we are the second largest producer of cement in the
world, only behind China.

Details of Book: Concrete Technology : Theory And Practice Book: Concrete Technology : Theory And Practice
Author: Shetty M. S
ISBN:8121900034
ISBN-13:9788121900034,978-8121900034
Binding: Paperback
Publishing Date: 2009
Publisher: S. Chand & Company Ltd.
Number of Pages: 656
Language: English

ABLE OF CONTENTS
1. Cement
2. Types Of Cement And Testing Of Cement
3. Aggregates & Testing Of Aggregates
4. Water
5. Admixtures & Construction Chemicals
6. Fresh Concrete
7. Strength Of Concrete
8. Elasticity, Creep & Shrinkage
9. Durability Of Concrete
10. Testing Of Hardened Concrete
11. Concrete Mix Design
12. Special Concrete & Concreting Methods
General Reference Books
List Of Indian Std. Specification &Code Of Practices , Related To Cement & Concrete Subject Index



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