4 research outputs found

    STUDY, BEHAVIOUR AND CLASSIFICATION OF FIBER REINFORCED CONCRETE

    Get PDF
    This can be a preliminary study from the fundamental conduct of fiber strengthened concrete. The best goal with this research study would be to develop an analytical model to simulate the conduct of fiber strengthened concrete structures under dynamic loading in addition to help in creating fiber strengthened concrete structure. This project examined fiber strengthened concrete through several experiments. To higher understand fiber strengthened concrete qualities, test examples were statically examined. Exterior fiber strengthened concrete sections be utilized for that purpose of blast and impact protection, with the additional advantage of reducing construction cost and time by decreasing the needed quantity of conventional steel. Adding unconventional reinforcement to concrete, particularly fiber reinforcement, continues to be proven to achieve the preferred qualities for blast and impact resistance including elevated sturdiness, toughness and energy absorption. This structure serves multiple functions. It's been recommended that for compressive strength, spitting tensile strength, and more importantly average residual strength, all using ASTM standards when relevant. Ale fiber strengthened concrete to hold load past initial cracking is shown by average residual strength

    AN INNOVATIVE TECHNIQUE USING WASTE SUBSTANTIAL OF IRON ORE IN CONCRETE MIXTURE

    Get PDF
    Nowadays, most concrete mixture consists of SCMs that are mainly off cuts or spend using their company industrial processes. More lately, strict ecological - pollution controls and rules have created a rise in the commercial wastes and sub graded off cuts that you can use as SCMs for example fly ash, silica fume, ground granulated blast furnace slag etc. Using this method project we're reduced the cement content by 30% than conventional concrete: In compression people the incremental alternation in the force was observed which is greater than 1.2585 occasions than conventional concrete. Within the split tensile strength aspect we observed the incremental change that is 1.2536 occasions greater than the traditional concrete. In flexural strength aspect we observed the drastically incremental change that is 1.4505 occasions greater than the particular conventional concrete. The cement paste premix can include admixtures for example accelerators or retarders, super plasticizers, pigments, or silica fumes. The premixed paste will be mixed with aggregates and then any remaining batch water and final mixing is finished in conventional concrete mixing equipment. High-energy mixed (HEM) concrete is created

    A SELF COMPACTING MATERIAL MIX TO IMPROVE THE ENACTMENT OF THE STRUCTURES

    Get PDF
    Concrete could be a versatile broadly used construction material. Since concrete remains recognized as being a material for construction, scientists are really attempting to enhance its quality and enhance its performance. Recent adjustments to construction industry demand enhanced sturdiness of structures. There's a methodological alternation in the concrete design within the strength based concept having a performance based design. At this time there's a big focus on performance a part of concrete. A specific thought has brought to the introduction of Self Compacting Concrete (SCC). It's called “the most revolutionary rise in concrete construction”. SCC could be a new type of High Finish Concrete (HPC) with excellent deformability and segregation resistance. It could flow through and fill the gaps of reinforcement and corners of moulds with no dependence on vibration and compaction with the placing process.  The guiding principle behind self-compaction is the fact “the sedimentation velocity in the particle is inversely proportional for that viscosity within the floating medium where the particle exists”. Another highlights of mix proportion of SCC include low water to cementations material ratio, large amounts of powder, high paste to aggregate ratio and fewer amount of coarse aggregate. Among the generally employed techniques to produce Self Compacting Concrete is to use fine materials like Fly Ash, GGBFS etc in concrete, besides cement, the concept being to boost powder content or fines in concrete.  The very first contribution in SCC pertains to the pioneering work of Nan Su et al who've created a simple mix design methodology for Self Compacting Concrete. During this method, the quantity of aggregate needed is made a decision first, according to Packing Factor (PF). This might make sure that concrete acquired has good flowability, self compacting ability along with other preferred SCC qualities. The Eu Federation of Producers and Applicators of Specialist Items for Structures (EFNARC) [2005] offer set certain methods for fresh qualities of SCC.   The current analysis concentrates at developing high strength Self Compacting Concrete of M40 and M70 Grade. The parameters of study include grade of concrete and aftereffect of size aggregate. The present Nan Su [2001] approach to mix design needed it's origin from packing factor for the caliber of concrete, acquired based on experimental analysis. SCC qualities for example flowability, passing ability and segregation resistance tend using slump flow, L box and V funnel tests

    M40 GRADE SELF COMPACTED CONCRETE & COMPARISION IN BEHAVIOUR WITH M40 CONVENTIONAL CONCRETE

    Get PDF
    Self-compacting concrete (SCC) can get rid of the problem, because it is built to consolidate under its very own mass. Normal concrete was created by utilizing IS method and self-compacting concrete was created with a simple mix design suggested by Nan Su. SCC was created in 1988’s by Prof. Hagime Okamura in Japan. Conventional concrete has a tendency to present an issue with regard to sufficient consolidation in thin sections or regions of congested reinforcement, which results in a sizable amount of entrapped air voids and compromises the durability and strength from the concrete. SCC was among the special concrete in around the globe. This project handles the comparison of two various kinds of high strength concretes they're high strength conventional concrete and strength self-compacting concrete. An experimental and statistical study mechanical qualities, for example compressive strength, flexural strength and split tensile strength of self-compacting concrete (SCC) and also the corresponding qualities of conventional concrete (CC) were studied
    corecore