Civil Engineering Forum

Pervious Concrete: What Is It and Is It More Expensive?

September 28, 2020 TeamCivil Concrete, Types

What is Pervious Concrete? Pervious concrete is a structural concrete pavement with a large volume (15 to 35 percent) of interconnected voids. Similar to normal concrete, pervious concrete is made from a mixture of cement,

Flexural Strength of Concrete

January 28, 2019 TeamCivil Concrete, Properties

Flexural Strength Flexural strength is an indirect measure of the tensile strength of concrete. It is a measure of the maximum stress on the tension face of an unreinforced concrete beam or slab at the point

Determination of Specific Gravity of Soil

January 25, 2019 TeamCivil Geotechnical, Soil Tests

Purpose of test To determine the specific gravity of soil fraction passing 4.75 mm sieve by pycnometer. Use of specific gravity value The knowledge of specific gravity is needed in calculation of soil properties like

Effect of SCMs on Alkali-Silica Mitigation

January 25, 2019 TeamCivil Concrete, Durability

Effect of SCMs on Alkali-Silica-Reaction Mitigation 1- Fly Ash the three characteristics of fly ash that determine its efficiency in preventing ASR are fineness, mineralogy, and chemistry. In general, the finer the fly ash, the

Reasons of Concrete Spalling

January 25, 2019 TeamCivil Concrete, Durability

Concrete Spalling Currently, there are two mechanisms concerning the occurrence of spalling: 1- the pore pressure build up causes spalling in the cement matrix and 2- thermal and mechanical stresses. In 1997, Anderberg gave an account

Soil Testing Required for Road Construction

January 25, 2019 TeamCivil Geotechnical, Soil Tests

Soil Testing Required for Road Construction Generally, when it come to construction on soils, tests should be performed to understand the nature of soil that the building is going to be constructed on. In this

Corrosion of Embedded Metals in Concrete

October 3, 2018 TeamCivil Concrete, Durability

Corrosion of Embedded Metals in Concrete Corrosion of reinforcing steel and other embedded metals is the leading cause of deterioration in concrete. When steel corrodes, the resulting rust occupies a greater volume than the steel.

Causes of Formwork Failures

May 22, 2018 TeamCivil Construction

Causes of Formwork Failures Failure of formwork in general results from various causes: excessive loads, premature removal of forms or shores, inadequacies related to formwork, and human error on the job, whether due to indifference,