Early Thermal Cracking in Concrete Explained [with Solved Example]

Early Thermal Cracking , PC- Jon Knights Materials Consulting Ltd

Early-age Thermal Cracking, usually termed as Early Thermal Cracking is a phenomenon in concrete structures, caused by excessive Tensile Strain in a concrete section above the Tensile capacity of concrete as a result of restraining thermal contraction or due to differential temperature within the cross section. There are several factors that can influence ETC in … Read more

Introduction to Structural Concepts and Design

Structural Concepts and Design

Introduction to Structural Concepts and Design •Concrete design in Australia follows AS 3600; •Concrete behaviour varies depending on whether it is in tension or compression; •The strength of concrete is given in terms of the characteristic strength; •Characteristic strength is defined in AS 3600 as “the value of material strength, as assessed by standard test, … Read more

Cement & Concrete Mix Design

Concrete Mix Design

Concrete Mix Design Concrete is a construction material composed of : Cement (commonly Portland cement) as well as other cementitious materials such as fly ash and slag cement. Aggregate (generally a coarse aggregate such as gravel, limestone, or granite, plus a fine aggregate such as sand). Water  and Chemical admixtures. The word concrete comes from … Read more

Concrete in Brief

Concrete in Brief

Concrete in Brief Properties of concrete Easily mixed, handled, transported, placed in position and compacted Segregation Separation of constituent materials of concrete Creates larger voids and reduces the durability and strength. Bleeding Water from concrete comes out of the surface Produces pores in concrete and reduces strength. Strength Compressive strength, tensile strength, flexural strength. Elasticity … Read more