Civil Engineering Forum

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,

Concrete Repair and Maintenance System

May 22, 2018 TeamCivil Management, Repair

Concrete repairs have occurred on Reclamation projects since the first concrete was placed in 1903. Unfortunately, even though the best available knowledge and materials were used, many repair failures have occurred during the 112 years

Origin and Classification of Aggregates

May 21, 2018 TeamCivil Concrete, Materials

Origin and Classification of Aggregates Most of the properties of an aggregate derive from its parental rock chemical and mineral composition which affects strength, stiffness, density, pore structure and permeability. Rocks experience geothermal and weathering

Pervious Concrete

May 21, 2018 TeamCivil Concrete, Types

Pervious Concrete Pervious concrete is a type of concrete with a system of interconnected pores allowing water to rapidly drain through. Pervious concrete itself is made up of coarse aggregate that is coated by a