QAQC in Construction

Effects of Silica Fume on the Strength and Durability Properties of Concrete This article presents the effects of silica fume on compressive strength, splitting tensile strength, resistance against chloride penetration and water absorption of concrete. Results indicated that the use of silica fume in concrete increased the compressive strength of concrete. Increase in water-binder ratio reduced the compressive strength of concrete irrespective of the use of silica fume. Silica fume had no noticeable effect on the splitting tensile strength of concrete. The resistance against chloride ion penetration increased with the increase in the contents of silica fume in concrete. A reduction in water-binder ratio (from 0.35 to 0.30) increased the ability of the concrete to resist chloride ion’s penetration. The introduction of silica fume in concrete reduced the water absorption capacity of concrete. A change in water-binder ratio also dramatically reduced the water absorption of concrete. ...

Interview for RE and Civil Engineer by MOT (Saudi Arabia) Q: 01 What are the duties or responsibilities of Civil Engineer? (asked every times) Ans: Actually Civil Engineer has to assist the R.E in all respects, including site supervision and office works. He has to check the quality of work as per contractual agreements of the contract, specification & according to Client / MOT circulars. To make draft regarding the site problems & forward to R E. To make valuable coordination b/w the contractor & consultants. He has to organize the duties of site staff. To monitor the program according to contract schedule & inform to section Resident Engineer. To make coordination b/w concerned department regarding the removal of obstacles. To maintain the daily & weekly report, regarding site activities & forward to Section Resident Engineer. To write site instructions note & forward to section Resident Engineer for action. He has to keep records of a...

Soil Testing - BS 1377 Parts 1-8 1990 The laboratory provides a modern temperature controlled effective stress laboratory offering the standard range of drained or undrained triaxial effective stress and permeability tests together with many of the advanced tests now commonly being required. Facilities also exist for determination of direct shear and one-dimensional consolidation properties using the oedometer. BS 1377 Part 2 Moisture Content Particle Size Distribution Sedimentation Atterburg Limits Linear Shrinkage BS 1377 Part 3 Sulphate Content (aqueous) Sulphate Content (Total) Organic matter content pH Value Chloride Content BRE Suite BS 1377 Part 4 Dry density/ Moisture Relationship MCV One Point/Calibration Vane Shear Bulk Density- Compacted Bulk Density- uncompacted California Bearing Ratio Test BS 1377 Part 5 Determination of the one Dimensional Consolidation Permeabilty test by Constant Head Permeabilty by the Ken Head Method...

Wadi Al Sulai is an ancient historical valley mentioned in the poems of Al-Asha and Al-Hamdani. Located in Riyadh, it runs for 103 kilometres  from King Khalid International Airport in the north to Khashm Al-A’an in the south, covering an area of 176 square meters. The valley features the well-known Ain Heet Cave, which has been a favorite destination of Riyadh residents for over 35 years. Despite Rapid Urbanization, Wadi Al Sulai has been left undeveloped and is not widely known to local residents. Riyadh Municipality is working to rectify this  through a development and rehabilitation project to transform the area into one of the capital's largest recreational parks by marketing its natural potential to private sector investors. AIN HEET CAVE The cave is arguably the most famous destination in Wadi Al Sulai. It is most popular among explorers and divers looking to traverse the abundant underground water, described by some geologists as the world's cleanest. ...

Types of Waterproofing the Building Need & Importance It is a dream for everyone to own a house of their own, even better when one can witness the foundation being laid and see it take shape in front of them. But there is a common problem for all – water seepage due to bad waterproofing. It hollows the whole structure of the building, causes long term problems ultimately affecting the life of the overall construction. This blog is a one stop solution for all types of waterproofing. It will guide you through all the precautionary process, products and procedures of the types of waterproofing in construction of your dream house. Foundation Waterproofing Basement Waterproofing Bathroom/Kitchen/Balcony/Chajja Waterproofing Terrace -Garden/Swimming Pool Waterproofing Building Foundation Waterproofing The foundation is the most important aspect in a building structure, one should take all possible measures to ensure its  longevity. The construction is built u...