Subject: - MONITORING REPORT REGARDING “UP-GRADATION OF 150-HIGH SCHOOLS TO HIGHER SECONDARY LEVEL (B&G: 30:70) IN KHYBER PAKHTUNKHWA ON NEED BASIS” ADP NO. 15/100280 SUB HEAD: GHS KHANANO DHARAI BUNER

S/No. Analysis and recommendation Replies1- The executing agency is intentionally delaying the

process of TS so as cover the reversions in implementation & planning of the scheme. TS must be in hand and be approved before the commencement of work, but as per saying of the Sub Divisional Officer of the C&W Department “Technical Sanction is under process of approval”. It is recommended that the concerned department should ascertain the process of TS without any further loss of time.

Technical Sanction Estimate has been submitted to Competent Authority for approval and will be available for verification in short time.

2- The Laboratory tests of material used in the structure and the soil bearing capacity test has been conducted” as stated by the Sub Engineer of the executing agency but the data has not been shared with the Divisional M&E Office Malakand, which clearly indicates that the material used is risk towards safety. It is recommended that the C&W Department Buner should clear up that why they are having such spoiled attitude of not sharing data & also all the material used in the construction Phase must be processed through Non Destructive Testing under trained staff of UET Peshawar of it must be assured that a safer structure is built up.

Laboratory test are being carried in routine for every work along-with field tests and visual examinations of the material. All the necessary tests have been done and record is available for verification. The test reports were not available at site and instruction has been issued to field staff to maintain separate file for all laboratory test at site and copies thereof will be available to M&E at site in future.

3- Following are the observations regarding sub standard workmanship and supervision maintained at the execution site by the C&W Department District Buner.

I The plaster carried out in the walls of the classrooms was checked out physically and was not in plumb as shown in photographs.

The contactor has been directed to rectify the defective plaster and final payment shall be released only after the rectification has been made properly.

II The columns of the ground floor connecting to the columns on first floor and also the stem column connected to the supper structure column was not in alignment to each other as shown in photographs.

The column for first floor and Ground floor as pointed out are Verandah columns and not the main columns, and the eccentricity being around 1.5 - 2” impact is not that much influential because of continuity of slab, minimum load and safety factor in the Design. Similarly, the stem column appears out of alignment due to extra concrete over and above the actual column section and verticality of centre line is maintained.

III Cracks in boundary of the school and also in the walls of the class rooms were observed as sown in photographs, which shows the poor supervision and workmanship was maintained at site.

The cracks in plaster of boundary wall and class rooms have been rectified properly at contractors cost. All possible efforts are made for effective supervision of works with the available strength of field staff, as half of the posts of engineering staff are lying vacant for quite some time, in C&W Division Buner.

IV Round aggregates were used in the RCC Columns of the Verandah (Pic-I). This will form no proper bondage with the steel bars and also with the internal constituents of the concrete which will contributes to the failures of the structure.

Only crush from approved sources is allowed for the concrete works. Sometimes round aggregates are got included in the mix due to poor sieving of sand. The tests of concrete have been carried out and which confirm to the standard strength criteria. Copies of test results are attached.

V Corrosion of steel bars in concrete is a serious problem throughout the word. This problem drains significant resources in the structural members. Corrosion is the main cause of damage and early failure of the reinforced concrete structures. This is caused by the exposure of the steel bars in the structural members. The exposure of steel was observed in the soffit of stair as shown in photograph, which will cause a serious damage to the section.

The steel in the stair soffits in a very minor portion was got exposed due to shuttering problem as there is a shortage of expert workmanship in Buner. The exposed portion has been rectified and plastered to avoid corrosion of the steel.

EXECUTIVE ENGINEER SUB DIVISIONAL OFFICER SUB ENGINEER

C&W DIVISION BUNER C&W DIVISION BUNER C&W DIVISION BUNER