Durability Archives

Construction Practices for Cold Weather Concreting

Cold Weather Concreting Construction Practices for Cold Weather Concreting Casting, placing and finishing concrete in cold weather is called “cold weather concreting” ACI 306 defines cold weather as “when the air temperature is expected to

Cold Weather Admixture System

TeamCivil Concrete, Durability, Materials

Cold weather concreting One of the most difficult issues that concrete professionals in cold places like North America and other cold areas must deal with is cold weather concreting. Cold weather concreting refers to doing

Cold Weather Concreting: Definition, Issues, and Precautions

TeamCivil Concrete, Durability

What is cold weather concreting? Cold weather concreting (pouring concrete in cold weather) is one of the most challenging problems that face concrete practitioners in cold regions such as North America and other cold areas.

How to Test Concrete for Carbonation?

TeamCivil Concrete, Durability, Repair

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