Responding to the central vigilance commission’s questioning of the quality of material used in the construction of the Rs 433-crore Barapullah elevated road, the PWD engineers said “thorough quality check was followed to ensure only proper quality of cement was used”.
The project’s manager said the report from the chief technical examiner’s office was “slightly misleading”. He said the road was “absolutely safe”.
“More than 25,000 tests were conducted on cement and concrete used in it. For the sample that failed to meet the compression test we assume there was either some human error or some fault in preparing the sample,” the project manager Sarvagya Srivastava said.
“We required grade 43 cement for it. The contractor was allowed to use grade 53 cement, which is better. The failed sample of the grade 53 cement met the strength of the grade 43 cement. But we feel there was some human error in taking the sample. The sample otherwise gave positive result on 18 of the 19 parameters of physical and chemical tests,” he said.