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Rajib Barua
Worked at Titas Gas Transmission and Distribution Ltd.
Attended Chittagong University of Engineering and Technology
Lives in Bangladesh
258 followers|11,661,067 views
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Rajib Barua

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Construction Sequence of Raft or Mat Foundation
Site selection, geotechnical investigation and structural analysis and proportioning of raft or mat foundation are done in design phase. Construction phase includes • Site preparation • Clearing construction site • Excavation • Fill placement • Providing st...
Solution of Foundation, concrete, black cotton soil, pile, earthquake, drilling, STAAD pro, ETABS related queries are published here.
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Properties of Coarse Aggregate for High Performance Concrete
Generally common type of aggregate are selected for providing high performance concrete. But when high strength is the primary concern of high performance concrete, the strength of coarse aggregates themselves are critical. We know most of the aggregates ar...
High early strength gaining cement will produce quick hydration to reach quick strength but ultimate strength is more or less same as that of normal concrete.
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Loading Rate and Strength of Concrete
In general, strength of concrete means compressive strength and flexure strength. In both cases, load is applied on concrete specimen at certain rate and applied until failure occurs. The range of usual speeds that are applied has significant effect on appa...
Solution of Foundation, concrete, black cotton soil, pile, earthquake, drilling, STAAD pro, ETABS related queries are published here.
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What is Transverse beam? It’s Function in Combined Footing.
The traditional design method for foundation supporting multiple columns is based on beam design principle. Combined footing is designed considering inverted beam. This inverted beam has two or more supports depending on number and spacing of column.
When column width = width of transverse beam, beam-slab design concept and when its width = beam width, isolated footing design concept is established.
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Factors Affecting Width of Cracks in Reinforced Concrete
In reinforced concrete, reinforcement contributes to limit cracks number and their width. We know if steel reinforcement is anchored at the end properly, a tension member like beam will not collapse prematurely even after entire span allow slip due to failu...
In reinforced concrete, reinforcement contributes to limit cracks number and their width. We know if steel reinforcement is anchored at th...
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Concrete Roof and Floor Surfaces
The design of concrete roof is identical to floor design; this in terms of structural requirements. The additional requirements of roofs are • To make impervious surface along passage of water • To provide sufficient drainage • To furnish condensation prote...
The design of concrete roof is identical to floor design; this in terms of structural requirements. The additional requirements of roofs ...
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What is Development Length for Steel in Reinforced Concrete?
Development length can be defined as a length of reinforcing bars into embedment of concrete required to develop full tensile strength of them. This length depends on either splitting or pull-out failure. According to figure 01 the moment is obviously maxim...
Solution of Foundation, concrete, black cotton soil, pile, earthquake, drilling, STAAD pro, ETABS related queries are published here.
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What is Dewatering of Soil? Objectives and Techniques of Dewatering
In general, dewatering means modification of ground by redirecting seepages, lowering the ground water table or in simple sense reduction of water content in foundation soil. Two types of dewatering techniques available; one is by gravity without applicatio...
Solution of Foundation, concrete, black cotton soil, pile, earthquake, drilling, STAAD pro, ETABS related queries are published here.
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Earthquake Damage on Water Tanks
Sometimes large volume of water is required to store to meet the municipal demand or requirement of local water supply authorities. Large volume of water yields large mass and often to be situated on elevated place to have gravity flow without pumping.
Solution of Foundation, concrete, black cotton soil, pile, earthquake, drilling, STAAD pro, ETABS related queries are published here.
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What Is Nailing Concrete
Nailing concrete has a property of holding nail firmly and it is achieved by including sawdust in concrete as aggregate. Sometimes concrete is required to be nailed to hang or hold something. Nailing concrete allow easy driving of nails. Most low-density (l...
Solution of Foundation, concrete, black cotton soil, pile, earthquake, drilling, STAAD pro, ETABS related queries are published here.
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What is Construction Loads on Structure?
In structural design, generally, we consider dead, live and lateral loads (in most case fraction of live loads) from different sources. But a structural member can be subjected to another loads larger than these loads anticipated earlier while erection of s...
In structural design, generally, we consider dead, live and lateral loads (in most case fraction of live loads) from different sources. Bu...
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What is Working Drawing? Working Drawings for Micropile Foundation
Working drawing is a technical drawing as a part of documentation required to build/construct an architectural or engineering product. In engineering purposes, these include every necessary data to construct or manufacture a desired object like dimensions, ...
The working drawing for micropile installation should include micropile number, pattern and location, design load of micropile, minimum bond length . . . . . .
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Education
  • Chittagong University of Engineering and Technology
    2005
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Gender
Male
Work
Employment
  • Titas Gas Transmission and Distribution Ltd.
    Assistant Engineer
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Currently
Bangladesh
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