construction quality control inspection program (qcip)
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Dr. R.P.Rethaliya , Ämitava Mitra ,IS :1077-1976 ,IS : 383-
1970, IS:1200,IS:2505/6 -1968,IS:651,IS:2556-,IS:657
,IS:1537,IS:772,IS:2470-1,2 ,IS:774,IS:14687
CONSTRUCTION QUALITY CONTROL INSPECTION PROGRAM (QCIP)
Reference book :
Presented By :
Er.Damani Mital
Quality QCIP Quality Material [cement,bricks,aggregate,water] Pre-construction preparation Important point for good quality Quality control in cement ,plumbing ,Drainage , doors –
windows ,formwork ]
CONTENT
Degree of excellence a product or service provides.In other words we can say :Fitness for purpose Conformance to requirement Grade I. SuitabilityII. ReliabilityIII. DurabilityIV. SafeV. AffordabilityVI. MaintainabilityVII. Aesthetic lookVIII. SatisfactionIX. EconomicalX. Versatility
WHAT IS QUALITY ?
Architecture view of any project should be good . Structure design should be good and safe . Testing of required material should be carried and
confirm it feasibility in use. Selection of material should be done according to
structure. Methodology accepted according to Material . Workmanship should be good. Supervising of project should be done properly . Construction management technique should be used. Team who engage in construction have aim acc to
quality conscious.
STEPS TO ACHIEVE QUALITY
Every operation is connected with the quality of the product. In the case ofconstruction the quality of construction is to be maintained as per projectspecifications. It is important that quality requirements be satisfied and productionschedules are met. The satisfaction of the owner of the project is mainly derived bythe quality of the work.
Stiff competition in the national and international level of construction sectordemands a high quality oriented attitude of engineers. However, the managementis required to achieve the satisfaction of the owner by completing the projectwithin the cost constraints for the project. Both of these things are dependent onproperly integrating quality development, quality maintenance and qualityimprovement in construction. The integration of all these three aspects can beachieved through a sound quality control system.
REVIEW OF QUALITY
Introduction Organization charts Inspector Responsibility Field testing Field laboratory Inspector plan Consultant for Quality Construction schedule Environment friendly
QCIP CONTENT
ORGANIZATION CHART
The necessary qualifications for QCIP staff should be established in the QCIP and resumes for QCIP personnel assigned to specific functions included in the initial submittal of the QCIP. At a minimum, resumes should be included for QCIP personnel who have authority to stop work or authority to recommend stop work due to adverse quality conditions. The qualification standard can be based on existing standards established by professional organizations such as ASCE and ACI orthe qualification standard can be specified in the QCIP. The information should be supplemented on a continuing basis by submittal of qualifications of personnel actually employed.
QCIP DUTIES , RESPONSIBILITY, QUALIFICATION & AUTHORITY
The responsibilities of the various organizations involved with the construction, such as the licensee, designer, construction management organization, QCIP staff, testing laboratory and construction contractor, should be addressed to provide an understanding of the necessary coordination and relationship for construction of the project. The services to be provided by each organization should be clearly delineated and discussed.
CONT..
The responsibilities, duties and authority of key QCIP staff should be clear and definitive, and should correlate with the organization chart. The position description should contain
such items as the job title; complete description of all duties and responsibilities; authority, such as, authority to initiate
a non conformance report, authority to stop work and authority to recommend stop work; responsibility relative to contractor negotiations and scheduling of construction; and
reporting authority. During construction, there should be someone in the field at all times who has the authority to
stop work. There should be a separation of authority between the QCIP staff and construction personnel. The
principal QCIP supervisor in the field should have limited or no involvement with contractor negotiations, scheduling of
construction and cost justification.
CONT..
Earth Work :Stages Measurement of dimensions in different directions
in terms of height, width and length Excavation of soil Determination of soil properties Compacting soilQuality Control Considerations Accurate measurements with precise instruments Use of good equipment Use of standard procedures for testing of soil Use of equipment for compaction
CIVIL INSPECTION WORK
MasonryStages Measurement of dimensions in different directions in
terms of height, width and length Construction of masonry Curing of masonry workQuality Control Considerations Use of good quality materials Use of right construction procedures and correct
bonds Employment of people with experience and expertise Adequate curing of masonry
CONT..
Reinforced Cement Concrete (RCC)Stages Measurement of all dimensions Creation and installation of formwork Provision of reinforcement Casting of concreteCuring of concreteQuality Control Considerations Use of good quality materials Use of right construction procedures Correct detailing of reinforcement Adequate curing of concrete
CONT..
Sanitary and Water Supply ServicesStages Measurement of dimensions in different directions
in terms of length as well as area covered Procurement of sanitary and water supply items Installation of these items correctly Testing of these itemsQuality Control Considerations Use of good quality materials and items Use of right construction procedures Employment of people with experience and
expertise
CONT..
Date Weather condition Recommendation provided to the contractor Description of nonconformance of material & work A brief description of work performed for the day A brief description of type & amount of material placed A brief description of public safety measure in place &
accident if any Description of any delay Description of any disputes between any vendor ,
contractor , engineer etc.. Review of testing , laboratory procedures & equipment The name of visitor Record of correspondence
DAILY PROGRESSIVE REPORT (DPR)
The quality of construction depend on :I. MaterialII. w/c ratioIII. WorkabilityIV. CuringV. MachineryVI. MethodologyVII. Experience of worker VIII.Design work of projectIX. Mistake likely to happen while construction X. Supervising of project on going work
QUALITY OF CONSTRUCTION MATERIAL
Uses: Concrete, Plaster, Flooring, Grouting, etc.
QUALITY OF CEMENT
Laboratory test
Field test
TEST ON CEMENT
Laboratory test
Consistency Fineness Setting time Compressive Soundness Heat of Hydration
Chemical composition
Is:12269-1987 OPC 2250 RHC 3250
OPC<30 RHC<30 LHC<60 >600
OPC 30%,70%,100%
10mm
The condition of store room should be well Level between cement bag and ground should be
considerably high The distance from wall and cement bag should be
around 30 cm In a column structure of cement bag no more than 14
bag allow The weather condition should be good and not foggy The priority to use old bag given first then to new bag The storage of cement bag should be under limited time
CAUTION ON CEMENT WHILE STORING
Uses: General construction ,Flooring , etc.
The brick should be properly heated The brick should be strong enough if we throw from
even 1.2 m The edge of brick should be sharp If we clap with brick then sound comes out to be
metallic Texture of brick should be uniform Size of brick should be standard The weight of brick should be 2.7 to 3.1 kg
QUALITY OF BRICK
Test on Brick
Measurement 1st Class Brick 2nd class brickLength 368 – 392 (20%) [7] 350 – 410 (22-25%)
[3.5]Width 174 – 186 165 – 195Height 174 – 186 165 – 195
BRICK CONT..
IS: 1077-1976
Observation ResultNo perceptible deposit Nil efflorescence 10% Slight50% salt without flaking Moderate50 % salt with flaking Heavy
Aggregate
Fine <4.75 Coarse >4.75
QUALITY AGGREGATE
IS: 383 – 1970 , Table 4
F.M Classification
2.2 – 2.6 Fine 2.6 – 2.9 Medium2.9 – 3.2 Coarse
Property Non – wearing
Wearing
Impact 45% 30%Abrasion 50% 30%Crushing 45% 30%
The impurity in water found is as follow :I. OrganicII. InorganicIII. SulphateIV. Alkali chloride
Dissolved salts in water can decrease compressive strength by 10 -30 %
Chlorides in water can affect dampness Corrosion & calcium chloride can set concrete faster same
effect can happen if sugar contain is more than 0.2% Inorganic strength can reduced the strength of concrete
QUALITY OF WATER
Impact of impurities on concrete
QUALITY OF PRECONSTRUCTION
PREPARATION
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