Corrosion inhibitors are admixtures that either extend the time to corrosion initiation or significantly reduce the corrosion rate of embedded metal, or both, in concrete containing chlorides in excess of the accepted corrosion threshold value for the metal in untreated ...
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Functions of Admixtures in Fresh and Hardened State of Concrete
admixtures (singular or combination of admixtures) are added to concrete or mortar or grout mixture to achieve or improve desired properties in the fresh or hardened state. The admixtures are added to concrete based on their functions which they are ...
Factors Affecting Performance of Admixtures in Concrete
There are many factors that influence the performance of admixtures in concrete such as type of admixture, dosage, compatibility of the admixture with cement, mix design, ambient temperature, and the presence of other admixtures. These factors influence the degree of ...
Precast Concrete Foundations- Features and Advantages
Precast concrete foundation construction is an off-site construction technique in which the foundation units are pre-engineered and manufactured in a controlled environment. These units as are pre-engineered, their capacities or the limits are communicated with the purchaser to produce the ...
Injection Grouting: Purpose, Procedure, and Field Considerations
Injection grouting is a process of filling the cracks, open joints, voids, or honeycombs, in concrete or masonry structural members, under pressure with a material that cures in place to produce the desired results like strengthening a structure and prevent ...
Fire Damage Mechanism of RC Structure and Assessment Method
Fire cause concrete surface cracking and crazing, chemical decomposition, and microcracking and spalling. These impacts can significantly change the properties of structural concrete, reducing strength and durability, and altering structural behavior. Assessment and evaluation of damages caused by fire is ...
Non-destructive Tests on RC Structures: Basic Methods, and Purposes
Non-destructive tests (NDT) are test methods which are used to examine the hardened concrete structure for their suitability for its intended use without interfering in any way with the integrity of the material or its suitability for service. So, locating ...
On-site and Off-site Construction-Pros and Cons
On-site and Off-site construction techniques are widely used in the construction industry based on the objective and features of the construction project. In an on-site construction, the technique makes use of traditional construction methods in which all the works and ...
What is Offsite Construction?
Off-site construction is a construction procedure that involves the planning, designing, fabrication, transportation of fabricated building items and its assembling on the site with great speed and a high degree of finish. This degree of precision is far better than ...
Applications and Importance of Non-destructive Tests on Concrete
Non-destructive tests (NDT) are widely used and play an important role in engineering projects including newly constructed and existing structures. For new structures, applications are mainly quality control or the resolution of doubts about the quality of materials or construction. ...