Durability Archives

How to Test Concrete for Carbonation?

You do not have to be a concrete guru to understand “carbonation“. This article simply explains the process of carbonation and shows how easily it is for home owners to know the effect of carbon

Honeycombs in Concrete: Causes and Effects

TeamCivil Concrete, Durability

Concrete is one of the most durable materials for construction in the modern history. Yet, it might be exposed to some conditions that negatively affect its performance due to distress. Concrete quality might get compromised

Features of Sulfuric Acid Attack

TeamCivil Concrete, Durability

Sulfuric Acid Attack Sulfuric acid [H2(SO4)] attack on concrete may be identified by a chemical reaction between the acidic media and cement hydration products, leading to excessive formation of gypsum. Acid attack can occur under

Effect of SCMs on Alkali-Silica Mitigation

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

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

Corrosion of Embedded Metals in Concrete

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.

Carbonation and Corrosion

TeamCivil Concrete, Durability

Carbonation is the term used to describe the effect of carbon dioxide on a material. The phenomenon rarely leads to structural problems but carbonation-induced corrosion can lead to unsightly spalling on structures. The repair costs,

Chloride Ingress into Concrete

TeamCivil Concrete, Durability

For concrete structures in chloride-containing environments, the ingress of chlorides can take place in different ways. Through uncracked concrete, the ingress mainly takes place by capillary absorption and diffusion. When a relatively dry concrete is