methods for construction form work, reinforcement, and concrete, including the furnishing and fixing of formwork and placement of high yield strength deformed bars and concrete as per the approved standards. It also details the requisite building materials and their quality check norms, the explicit construction procedure from formwork to curing, and the quality control tests required at different stages of the process.
method for slope protection in high embankments, which includes covering slope surfaces with stone, cement blocks, or stones in wire crates over a layer of granular material. The procedure involves preparing the slope, placing a filter layer, and conducting a dry rubble pitching with stones or concrete blocks.
methodology for putting sod on embankment slopes. This involves preparing the slopes, procuring dense, well-rooted grasses indigenous to the locality, cleaning of undesirable materials, and trimming the sod to uniform width and thickness. The sods must be laid from the bottom upwards, moistened, and watered for four weeks post-installation.
methodology for constructing road shoulders, medians, and islands. These structures are built with materials akin to those used for embankment construction, subgrade, and wearing courses, meeting the physical criteria of each individual layer. The construction proceeds in layers, matching adjacent pavement layers. Shoulders, medians, and islands are constructed directly, with any spillover being removed diligently. Medians and islands are raised by at least 300mm using approved curbstones once the surface reaches road level.
constructing cement concrete kerbs and channels along footpaths, medians, and separators. The machinery required includes batching plants, transit mixers, kerb casting machines, and concrete cutting machines. Processes involve line layout by a surveyor, level sensor placement, concreting, creating grooves at intervals before hardening, and subsequent curing. Cubes will be cast as needed at the batching plant.
Methodology for Pavement Quality Concrete (PQC) construction including Dry Lean Concrete Sub-base. It covers equipment requirements, material specifications, mix design, construction process, transportation, placement, curing, joint cutting and filling, trial paving, testing, tolerances, and environmental safety. The protocol requires strict adherence to technical guidelines, regular testing and record-keeping to ensure quality control and safety.
methodology of constructing Dry Lean Concrete (DLC) Sub-base for Cement Concrete Pavement in conformity with approved specifications. It details the equipment requirements, materials, mix design, construction process, including placing, compaction and curing procedures, as well as trial paving, testing and environmental safety considerations. It stipulates that traffic restrictions will be in place after construction and stresses the importance of quality control.
What Is DBM? Dense Bituminous Macadam (DBM) is a type of road surface course that plays a crucial role in the construction of durable and resilient highways. Comprising a mix of graded aggregates, filler, and bitumen, DBM is designed to provide a strong and wear-resistant layer to withstand the stresses imposed by vehicular traffic. The … Read more