Self consolidating concrete history
Self consolidating concrete history - Free sex open chat rooms without registration
It is very fluid and can pass around obstructions and fill all the nooks and corners without the risk of either mortar or other ingredients of concrete separating out, at the same time there are no entrapped air or rock pockets.
By developing concrete that self-consolidates, he eliminated the main cause for the poor durability performance of their concrete.
Self consolidating concrete (SCC) is highly flowable, non segregating concrete that can spread into place, fill the formwork, and encapsulate the reinforcement without any mechanical consolidation (ACI 237).
Current Developments in Self-Compacting Concrete Introduction Self-compacting concrete (SCC) is a flowing concrete mixture that is able to consolidate under its own weight.
Self-consolidating concrete (SCC) or self-compacting concrete, as its sometimes known, arrived as a revolution in the field of concrete technology.
The concept was proposed by Professor Hajime Okamura of Kochi University of Technology, Japan, in 1986 as a solution to the growing durability concerns of the Japanese government.
Self-compacting concrete (SCC) describes a concrete with the ability to compact itself only by means of its own weight without the requirement of vibration.
Self-compacting concrete also known as Self-consolidating concrete or self levelling concrete. Self-compacting concrete is placed or poured in the same way as ordinary concrete but without vibration.By 1988, the concept was developed and ready for the first real-scale tests.The first paper on SCC was presented at the second East-Asia and Pacific Conference on Structural Engineering and Construction (EASEC-2) in 1989, followed by another presentation at an Energy Diversification Research Laboratories (CANMET)/American Concrete Institute (ACI) meeting in 1992.(1) In 1997, a RILEM committee (TC 174) on SCC was founded.Today, SCC is studied worldwide with papers presented in almost every concrete-related conference.In everyday terms, when poured, SCC is an extremely fluid mix with the following distinctive practical features - it flows very easily within and around the formwork, can flow through obstructions and around corners ("passing ability"), is close to self-levelling (although not actually self-levelling), does not require vibration or tamping after pouring, and follows the shape and surface texture of a mold (or form) very closely once set.