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Concrete

Coefficient of Thermal Expansion of Concrete

Ubani Obinna - 1
Coefficient of thermal expansion is defined as the change in unit length per degree of temperature change. In a concrete element,...
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Events and Conferences

IStructE to hold Webinar on Structural Uses of Stone

Peace Ikpotokin - 0
The Institution of Structural Engineers (IStructE) will be organising a webinar on the structural uses of stone. Stones are naturally occurring...
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Construction

Compaction Pressure of Machines on Retaining Walls

Ubani Obinna - 1
In the construction of earth retaining structures, it is very common to excavate the area, construct the earth retaining structure, backfill with...
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Geotechnical Engineering

Standards for Highway Materials in Nigeria

Ubani Obinna - 0
Earth materials are extensively utilised for highway construction in Nigeria. It has been recognised that high quality lateritic soils which are abundant...
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Geotechnical Engineering

The West African Standard Compaction Test

Ubani Obinna - 1
The West African Standard (WAS) compaction test is a type of compaction procedure that utilises intermediate compaction energy (compactive effort) for densification...
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Construction

Building collapse – Have you exhausted your factors of safety?

Ubani Obinna - 1
The aftermath of any building collapse is usually horrendous, and the experience is an ugly one for everybody concerned. Human lives might...
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Cement

Cement Standards and Applications in Nigeria

Ubani Obinna - 0
Cement is one of the most popular construction materials in Nigeria, and has been extensively utilised in civil engineering works such as building construction,...
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Concrete

Formulas for Calculating Different Properties of Concrete from Compressive Strength

Ubani Obinna - 0
The most basic test done on concrete in most laboratories is the compressive strength test. Sometimes other properties of concrete such as...
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Concrete

Specification of Concrete for Water Retaining Structures

Ubani Obinna - 0
In the year 2018, we made a successful publication on Analysis and Design of Swimming Pools and Underground Water Tanks. In this post, we...
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Construction

Review on the Quantity of Cement Required to Lay 9 inches (230 mm) Blocks

Ubani Obinna Uzodimma - 3
In our previous post, we were able to establish that we need 0.03 m3 of mortar to lay one square metre of 9 inches hollow...
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Concrete

Bonding of Old and New Concrete

Ubani Obinna Uzodimma - 8
In construction, there always comes a time when there is need to bond hardened concrete (substrate) with fresh concrete topping/overlay. The aim of this...
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Concrete

Use of Rice Husk Ash in Concrete: Literature Review

Ubani Obinna Uzodimma - 1
1.0 Introduction A pozzolan is a siliceous or aluminosiliceous material that, in finely divided form and in the presence of moisture, chemically reacts with the...
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Most Read

Effects of Diesel Contamination on the Engineering Properties of Natural Soils

Geotechnical Engineering Ubani Obinna - 0
Soil contamination is a serious problem and major environmental problem worldwide. Oil contamination of soils can occur as a result of...
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Design of Steel Beams for Combined Bending and Shear

Beams Ubani Obinna - 1
It is very common to see bending moment and shear force act simultaneously in structural members. However, when the shear force...
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Effect of Impact Load on Lap Length of Reinforcements in RC Structures

Beams Ubani Obinna - 0
Lap length and anchorage length of reinforcements is very important for continuity, strength, and ease of construction in reinforced concrete structures....
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Static and Kinematic Determinacy of Structures

Beams Ubani Obinna - 0
A structure is a system of connected parts designed to resist load. Kinematical analysis is very important in the evaluation of...
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EDITOR PICKS

Effects of Wind on Billboard Structures

Column Ubani Obinna - 0
Billboards are large outdoor advertising structures that are found along highways and city centres. Due to their large size and flexibility...
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P-Delta Analysis

Column Ubani Obinna - 0
P-delta is a geometric non-linear effect that occurs in structures that are subjected to compressive loads and lateral displacement. Under the...
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Plates on Elastic Foundation

Foundations Ubani Obinna - 0
Many problems of practical importance can be related to the solution of plates resting on an elastic foundation. Reinforced concrete pavements...
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POPULAR POSTS

Structural Analysis and Design of Residential Buildings Using Staad.Pro, Orion, and Manual Calculations

Column Ubani Obinna Uzodimma - 29
This should be a long post, but I am going to try and keep it as brief as possible. This post...
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PRACTICAL ANALYSIS AND DESIGN OF STEEL ROOF TRUSSES TO EUROCODE 3: A SAMPLE DESIGN

Eurocode 3 Ubani Obinna Uzodimma - 27
1.0 INTRODUCTION The most widespread alternative for roof construction in Nigeria is the use of trusses, of which timber and steel are the primary choice...
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Can you identify the cause of failure of this building?

Construction Ubani Obinna - 24
Structural failure is real, and it is the duty of structural engineers to identify all possible modes of failure in a structure,...
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