www.www.buonovino.com

[alpa_sheth at vsnl.com]

Dear All:

For those of you who have not had the time to look at the papers/articles
uploaded on SEFI on reinforcement steel from Indian Concrete Journal January
2004 issue, I am reproducing the abstracts of the same herein. I hope this
will inspire us to download these articles.

Regards,
Alpa Sheth /SEFI Admin

1. Characterisation of steel reinforcement for RC
structures: An overview and related issues

P C Basu and others

Characterisation of steel reinforcement is as important as that
of concrete ingredients. The paper presents an overview of
characterisation along with some related issues. After briefly
highlighting the mechanics of RC structures, important
characteristics of reinforcement, namely, bond with concrete,
strength, ductility, resistance to corrosion are discussed. The
effects of manufacturing process on the rebar characteristics
are then described. Finally, a comparison of specifications of
standards of different countries dealing with reinforcing steel
is presented. The authors have suggested certain modifications
in the Indian specifications IS 1786.


2. Sub-standard rebars in the Indian market : An insight*

C.S. Viswanatha, L.N. Prasad, Radhakrishna and H.S. Nataraja

The use of sub-standard rebars has far-reaching repercussions
as far as the quality and durability of a reinforced concrete
structure is concerned. The authors, who had tested about
18000钢筋在最后两个样品-and-a-half years, present
some selected case studies of sub-standard rebars that are
classified into six specific categories. It is concluded that since
the standard and sub-standard rebars look alike, proper
verification of the source and requisite properites of the rebars
are highly essential.

3. Reinforcement quality assurance and certification and validation aspects

S.A. Reddi and S. Bhuvanesh

If the reinforcement in concrete is not of proper quality and/or
is not accurately detailed, the performance of the structure gets
affected seriously. In this paper, the authors endorse the need
for strict quality assurance and control and describe the
certification and validation aspects.

4. A journey through Indian reinforcing bars

C.S. Viswanatha

The feature presents a historical review of major developments
in the sphere of reinforcing steel, especially in the Indian
context. The major landmarks in the history covering squaretwisted
rebars, cold-twisted and hot-rolled rebars, thermomechanilcally
treated rebars, Torkari bars, etc are described.
The author has also touched upon special steels, coated rebars
一个d sub-standard rebars.

Posted via Email