Reinforced cement concrete is getting extensively used for construction of different type of structures for the last one century during this period,we have constructed many Industrial structures like in Cement Industry, Captive power buildings, bridges, pavement, water retaining structures, etc. using this R.C.C material. These structures have been created with huge investment of resources. it is essential to maintain those structures in functional condition, since deterioration in R.C.C structures is a common and natural phenomenon due to presence of pores and capillaries due to high water/cement ratio, Some times voides and honey combing due to improper mix proportion and poor concreting practice.These flaws in R.C.C encourages ingress of moisture, corbondioxide and other acidic gasses and chlorides.In the industry ,the marine environment, moisture and chemical ingress into concrete through cracks formed during early age due to shrinkage ,expansion or those due to over loading than the designed load.As a result of this CORROSION of Reinforcement is induced,which causes splitting of concrete covers and spalling of concrete.This CORROSION continuous further reducing the strength of the structural elements and tghen effects the stability of the structure.
The R.C.C Structurres also damaged due to sulphate attack,Fire ,explosions etc.THE CORROSION OF THE REINFORCEMENT IS THE MAJOR THREAT TO CONCRETE STRTUCTURES.This needs extensive condition survey ,diagnosis and cost effective remedy of restoration / rehabilitation to bring the structures in to designed functional condition
As we have been providing civil & structural engineering consultancy services from the past 25YEAR for the Cement Industry & Captive power industry ,We can provide the best Diagnosis on the Structure ,to evaluate the residual strength of the structure and its rehabilitee.
The diagnosis of deterioration is made by In-Situ Non-Destructive testing method,as this is the finest tool in the hands of the Concrete technologist and analysit. Which provides present status of concrete quality,strtength,integrity and durability.
The NDT Methods can effectively detect the presence of cracks,voids,extent of corrosion,cover and size of rebars,delamination,chloride or sulphate attack,progressing alkali-aggregate reaction and concrete carbonation.
SVDPL is capable to carry out in-situ investigation for condition survey and NDT tests for old R.C.C structures.It aims to diagnose the root cause of deterioration ,and to suggest remedial measures for restoration and to carry cost effective rehabilitation works.
The decision of repair or replace the structure or its component depend upon the service life of the structure and based on technical and economical evaluation. The selected method shall meet below objectives.
Repair strategy to be chosen such that it meets the above objective.
Depending upon the condition of structure we may choose any of the below repair methodology.
Civil concrete structures are very critical plant assets & used for support to various equipment, pumps/motors/vessels/pipe support as a foundation. It is therefore imperative to ensure their indicated valve/status is correct & plan can be run safely & with optimum efficiency. (3) For achieving this objective, it is required to verify their functioning from time to time & correct the deviation, if any, found during the inspection and testing. Certification of civil structure integrity need to done by authorize persons & records maintained for future reference & traceability. Visual inspection is supported by following NDT test for interference:
