CONTRACT MANAGEMENT IN CONCRETE REPAIR AND REHABILITATION

Author(s):  
K Tzanos
1998 ◽  
Vol 25 (1) ◽  
pp. 81-86 ◽  
Author(s):  
N Hearn ◽  
J Aiello

Experimental work on prismatic concrete specimens was conducted to determine the relationship between mechanical restraint and the rate of corrosion. The current together with the changes in strain of the confining frame were monitored during the accelerated corrosion tests. The effect of mix design and cracking on the corrosion rates was also investigated. The results show that one-dimensional mechanical restraint retards the corrosion process, as indicated by the reduction in the steel loss. Improved quality of the matrix, with and without cracking, reduces the rate of steel loss. In the inferior quality concrete, the effect of cracking on the corrosion rate is minimal.Key words: corrosion, concrete, repair.


2021 ◽  
pp. 205556362110167
Author(s):  
C Haward Soper

Modern complex contracts require cooperation, solid effective governance and a hard core of clear and workable terms and conditions to make them work. In this essay I explore exactly what cooperation and governance mean through the lens of a major global survey of contract practitioners. I discuss formal and informal elements of contract management because both matter. I find that contract managers show a marked reluctance to use punitive measures, but that value is seen in escalation, negotiation, communication, and professional governance. These require constructive engagement, that the parties talk, communicate, and work together to find the cause of the problem and agree solutions. I conclude that respondents are more interested in performance than in revenge, and that the key task is about making the contract work.


2010 ◽  
Vol 168-170 ◽  
pp. 945-948
Author(s):  
Shu Hua Liu

The properties of inorganic cohesive glue and its appliance to repairing ordinary and high strength concrete were studied in this paper. Inorganic cohesive glue not only has high strength, but also has equivalent coefficient of expansion with that of concrete and steel. The mechanical performance of inorganic cohesive glue is better than that of concrete, and other performances are similar to those of concrete. In the concrete repair work, it can mend the ruinate concrete well, and the strength of the repaired concrete is as high as or higher than that of original specimen.


2005 ◽  
Vol 43 (11) ◽  
pp. 3-11 ◽  
Author(s):  
I. Funakawa ◽  
S. Ushijima ◽  
T. Miyagawa ◽  
Y. Yamamoto

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