Reliability Study of RCC Elements of Sugar Mill
Abstract- Preliminary assessment can be executed using Rapid Visual Screening i.e. by visual observation notes with standard format sheets having dimensions, physical changes visually seen, photo and basic input to decide for in depth survey using appropriate NDT scheme. Basic environmental features which can affect health of structure should be recorded in addition to other inputs e.g. repair history, reasons for distressed condition if known by interaction with local people. New technologies option in rehabilitation is based on the assessment of the respective structure. Nondestructive testing was performed to evaluate the integrity of damaged concrete structures. Rebound hammer can be used to find hardness of the concrete structure surface, and its strength is related using inbuilt calibration curve in the instrument. The range of properties that can be assessed using non-destructive tests and partially destructive tests is quite large and includes such fundamental parameters as density, elastic modulus and strength as well as surface hardness and surface absorption, and reinforcement location, size and distance from the surface. In some cases it is also possible to check the quality of workmanship and structural integrity by the ability to detect voids, cracking and delamination. For new structures, the principal applications are likely to be for quality control or the resolution of doubts about the quality of materials or construction. The testing of existing structures is usually related to an assessment of structural integrity or adequacy.
Keywords— Sugar Mill, Rebound Hammer, Beam, Column, Foundation I.
INTRODUCTION
Concrete is a strong handy building material that has found favor amongst the Civil Engineers due to ease of production and capability of being molded into any shape and size. Its quality, performance and behavior depend upon its constituents and the method of production. In the earlier times the period when most of the old RCC structures were built, the emphasis was primarily on the 28 days strength of the concrete. Little was known about the long-term behavior of concrete i.e., durability, as the earlier versions of IS 456:1978 was silent on this aspect. Though environmental factors or exposure conditions were known to cause damage to concrete, but many of the places are free from pollution and far away from the sea, the environmental factors were not considered for these types of structures.
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