Definition ACI 237 defines Self Compacting Concrete (SCC) as “highly flowable, non-segregating concrete that can spread into place, fill the formwork, encapsulate the reinforcement without any mechanical consolidation. Self-compacting concrete Idea Of Self Compacting Concrete SCC idea was brought up …
Mineral admixtures play an important part in making of High Strength Concrete systems. Before going to mineral admixtures, I will clarify the difference between admixtures and additives Concrete admixtures vs additives: Anything which is added during grinding stage which has some …
The durability of concrete can be defined as its ability to resist weathering action, chemical attack, abrasion or another process of deterioration and hence retains its original shape, dimension, quality and serviceability. What is durability of concrete? Durability is the …
How To Improve Microstructure Of Concrete – As Civil Engineers, We all know that microstructure of concrete is very important in terms of strong durability and serviceability. Many deleterious actions operate through the microstructure of concrete therefore, it is very …
Curing of Concrete | Curing time & Duration | Curing methods – Concrete Curing Time and Duration – Any time you have 3 consecutive days where the average daily temperature is less than 40°F or if the temperature is lower …
In this article, Thermal Spalling of Concrete Explanation is given. This is the in-depth article for Thermal Spalling of Concrete. Spalling Spalling is considered as one of the most complex and poorly understood phenomenon occurred at high temperatures. (Khoury 2000; …
Before making a mix design for shotcrete or sprayed concrete, it is needed to get sufficient information from the clients. Adequate support information will result in a technically and economically effective for the work. A proper mix design assures a …
In order to prevent concrete structures from damage caused by plastic shrinkage, thermal shrinkage, settlement, movement…, concrete joints are required. There are 3 common types of concrete joints as outlined bellows. 1. Contraction (Control) Joints Contraction Joints are purposely installed …
Concrete Bleeding Explained – Concrete Bleeding is predicted but if it is extreme it may cause issues. This text will clarify Bleeding in detail. In this article we discussed about removing bleed water from concrete. We also explained effect of segregation and bleeding on quality …
Generally, the contractor shall allow for all necessary measures to monitor and avoid cracking in fresh hydrating concrete, regardless of the size or volume of the pour. Such measures shall be to the satisfaction of the Engineer and shall be …