SELF COMPACTING CONCRETE.pptx - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online.
Self- compacting concrete is a non-segregating concrete that is placed by means of its own weight. The importance of self-compacting concrete is that maintains all concrete's durability and characteristics, meeting expected performance requirements. 5. COMPARISON SELF-COMPACTING CONCRETE • Gives good aesthetic finish.
Concrete is the most widely used construction material in India with annual consumption exceeding 100 million cubic meters. High performance concrete is a concrete in which certain characteristics are developed for a particular application and environment, so that it will give excellent performance in the structure in which it will be …
🕑 Reading time: 1 minuteU Box Test Method for Self Compacting Concrete U box test was developed by the Technology Research Centre of the Taisei Corporation in Japan. Some time the apparatus is called a "box shaped" test. U Box test is used to measure the filing ability of self compacting concrete. The apparatus consists […]
2. • Self compacting concrete is an innovative concrete that does not require vibration for placing and compaction • Self compacted concrete is highly engineered concrete with much higher fluidity without segregation and is capable of filling every corner of formwork under its self weight . • The creation of durable concrete structures ...
High Performance Concrete Presentation. 1. A SEMINAR ON HIGH PERFORMANCE CONCRETE SUBMITTED TO - PRESENTED BY- MR. GOURAV SANKET JAIN. 2. HIGH PERFORMANCE CONCERTE. 3. HIGH PERFORMANCE CONCERTE • A CONCRETE WHICH MEETS SPECIAL PERFORMANCE AND …
Few methods of compacting soil of them are mentioned below: Compaction by surcharge load: The ground can be surcharged with heavy loads from aggregates or other materials to speed up the …
INTRODUCTION What is Self Compacting Concrete (SCC) ? Defined as Concrete that is able to flow and consolidate under its own weight, completely fill the formwork even in the presence of dense …
Self-compacting concrete (SCC) has many benefits in terms of production and placement compared to traditional concrete namely, elimination of external or internal vibration for …
Self-compacting concrete is a type of non-segregating concrete that can settle into formwork and envelop heavily reinforced, narrow, and deep portions with its weight. Unlike typical concrete, which employs mechanical equipment such as immersion vibrators, self-compacting concrete does not require external force or vibration to compact. When it ...
HPC Concrete may be regarded as high performance for several reasons High strength High workability High durability Also improve visual appearance. 7. HISTORY During Roman empire Roman concrete was made from quicklime, ash and an aggregate of pumice. It quickly hardened into a rigid mass, free from many of the internal thrusts and …
3. INTRODUCTION • Artificial intelligence is a branch of computer science, involved in the research, design, and application of intelligent computer. •The field of artificial intelligence, or AI, attempts to …
New civil nano concrete ppt by . ... and the self- compacting properties of concrete and in reducing permeability. Nano clay particles have shown promise in reducing shrinkage of concrete. Alkali–aggregate reactions have been studied at nano scale (Bernabeu et al., 2005). Insitu and ex-situ experiments on the alkali dissolution of mica …
This led to the development of self-compacting concrete, primarily through the work by Okamura 1. A committee was formed to study the properties of self-compacting concrete, including a fundamental investigation on the …
Also, it is observed that the addition of polypropylene fibres has reduced the fresh properties of self compacted concrete. However, M-sand with 0.15% polypropylene fibres has slightly improved the strength of self compacting concrete, compression strength by 6.97%, split tensile by 8.68% and flexure strength by 3%.
SELF COMPACTING CONCRETE. ppt.pptx. 1. Self-compacting concrete is a fluid mixture suitable for placing in structures with congested reinforcement without vibration. The SCC can be made by three methods namely powder type,VMA type and combined type. VMA type is used in our project and Cement is replaced by fly ash at …
Self-Compacting Concrete (SCC) is defined as concrete that has an ability to flow under its own weight, to fill the required space or formwork completely and to produce a dense and adequately homogenous material without a need for vibrating compaction, [1]. Rheological properties are the dominant feature of SCC with regard to its designing and ...
4. Introduction Concrete containing cement, water, aggregate, and discontinuous, uniformly dispersed or discrete fibers is called fiber reinforced concrete. It is a composite obtained by adding a single type or a blend of fibers to the conventional concrete mix. Fibers can be in form of steel fibers, glass fibers, natural fibers, synthetic ...
Self Consolidating or Self Compacting Concrete (SCC) is a highly flowable, deformable, non-segregating concrete that spreads and fills in the formwork under its own weight. Flowability is maintained by using a high …
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Self compacting concrete: Materials used to make this concrete 1. Portland cement. Ordinary/ regular Portland cement of grades 43 or 53 may be utilised in making Self- compacting concrete. 2. Aggregates. The maximum aggregate size that can be used for Self- compacting concrete design is 20mm. The aggregate size utilised …
GGBS. 1. Changing the face of concrete Avinash Shaw Department of Civil Engineering NIT Durgapur Prof. A. K. Samanta. 2. Ground-Granulated Blast-furnace Slag Sometimes, also referred to as GGBFS Obtained by quenching molten iron slag from a blast furnace in water or steam, dried and ground into a fine powder. 3.
Modern application of SCC (self-compacting concrete) is focussed on high performance, better and more reliable, and uniform quality. List of Test Methods for Workability Properties of Self Compacting Concrete (SCC). 1. Slump flow by Abrams cone. 2. T 50 cm Slump flow. 3. J-ring. 4. V-funnel. 5. V-funnel at T 5 minutes
Self compacting concrete (SCC) can be defined as fresh concrete that flows under its own weight and does not require external vibration to undergo compaction. It is used in the construction where it is hard to use …
Particle Packing Theory (PPT) is fundamental method to find the porosity of concrete [14]. Better the packing of the particle system, lesser the requirement of binder in the concrete. ... In addition to the replacement the concrete is developed as a self-compacting concrete (SCC) to avoid segregation and vibration in concrete. The study …
• Excess temping should be avoided as otherwise water, cement and finer particles would come to the surface and results in non uniform concreting. • In case of important and big works, compaction of …
107. The ACI Method of Mix Design Step-7 • The weight of CA per cubic metre of Concrete is Calculated by multiplying the bulk Volume with bulk density of CA Step-8 Estimate of Density of fresh Concrete • Knowing the maximum Size of Coarse Aggregates, the density of fresh Concrete is estimated as. 108.
2. Slump test is the most commonly used test of measuring workability of concrete. It can be employed either in laboratory or at site of work. It is used conveniently as a control test and gives an indication of the uniformity of concrete from batch to batch. 4. The internal surface of the mould is thoroughly cleaned and freed from superfluous ...
Test methods to determine workability of Self Compacting Concrete are: 1. Slump flow test. The slump flow test is used assess the horizontal free flow of self compacting concrete in the absence of obstructions. The test method is based on the test method for determining the slump. 2. V Funnel Test.
Concrete is a widely used building material, which is good in compression, but weak in tension. The poor tension properties of concrete are covered by using steel bars as reinforcement, which enable concrete to withstand almost all types of loads and provide ductility to structural members. However, it has some drawbacks, such as …