scholarly journals The Influence of the Addition of Fibers on Properties of Self-Compacting Concrete Produced with Recycled Coarse Aggregate

2019 ◽  
Vol 8 (3) ◽  
pp. 5140-5146
Keyword(s):  
Coarse Aggregate ◽  
Environmental Issues ◽  
Mineral Admixtures ◽  
Polypropylene Fibers ◽  
Self Compacting Concrete ◽  
Fresh State ◽  
The World ◽  
Comparable Performance ◽  
Hardened State ◽  
Hardened Properties

All over the world, wide amount of demolishing waste is being generated posing lot of environmental issues. To address these issues, Self-Compacting Concrete (SCC) was made by replacing cement partially with mineral admixtures and NCA with RCA. The fresh and hardened properties for M30 grade of SCC made with NCA and RCA were evaluated. Cement in SCC was recouped partly with 30% Fly Ash, 20% GGBS by weight of the cement. Polypropylene fibers at 0.1% were added to study their influencing nature on the hardened state and fresh state properties of the SCC mix. Four sequences of SCC mixes of M30 were prepared by substituting the NCA with RCA at 25%, 50%, 75% and 100% derived from the dismantled concrete waste of M30 parent grade. SCC produced with the RCA up to 50% and with 0.1% addition of Fibers demonstrated comparable performance as that of SCC with NCA.

scholarly journals Study on Strength Characteristics of Binary Blend Self Compacting Concrete Using Mineral Admixtures

2018 ◽  
Vol 7 (3.12) ◽  
pp. 264
Author(s):  
G J. Prasannaa Venkatesh ◽  
S S.Vivek ◽  
G Dhinakaran
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Rheological Properties ◽  
Mineral Admixtures ◽  
Self Compacting Concrete ◽  
Binary Blend ◽  
Split Tensile Strength ◽  
Slump Flow ◽  
Fresh State ◽  
Hardened State

Self-compacting concrete (SCC) is the flowable concrete which tends to fill the formwork under its weight without external compaction. In the present research, 9 different SCC mixes in binary blend along with control SCC and conventional vibrated concrete (CVC) mixes were developed. In binary combination, cement was partially replaced by SF from 7 to 21%, MK from 10 to 30% and GGBS from 20 to 60%. For the above 9 combinations of SCC mixes, the basic rheological properties test namely slump flow and T500 were carried out in the fresh state of SCC. The flowability was achieved using Superplasticizer and viscosity modifying admixture (VMA), added by the percentage of the weight of cement. In hardened state, the compressive strength of the cube specimens and the split tensile strength of the cylinder specimens were carried out.  

Suitability of Quarry Dust as a Partial Replacement of Fine Aggregate in Self Compacting Concrete

2018 ◽  
Vol 877 ◽  
pp. 248-253
Author(s):  
Thete Swapnil Tanajirao ◽  
D. Arpitha ◽  
Suman Saha ◽  
C. Rajasekaran
Keyword(s):  
Coarse Aggregate ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Self Compacting Concrete ◽  
Slump Flow ◽  
Fine Aggregates ◽  
Material Gain ◽  
Optimum Utilization ◽  
Hardened Properties ◽  
Quarry Dust

Large quantity of the quarry dust gets produced annually in the quarries during the extraction of the crushed coarse aggregate. As a result, disposal problems of this material gain significant momentum as these disturb environmental systems also. Now-a-days many of the countries like India is facing problems of ban on the extraction of sand and lacunae in procuring of fine aggregate, which is important constituent of the concrete. To overcome this problem, present study is focused on the suitability to utilize the quarry dust in Self Compacting Concrete (SCC) partially as fine aggregate with the natural fine aggregates. In this work, quarry dust is used as replacement of sand in a different level (0%, 15%, 30%, 45% and 60%) for producing the SCC. Fresh properties such as slump flow and V-funnel time have been measured for all mixes and hardened properties as compressive strength, splitting tensile strength and flexural strength of the concrete have been checked for all the mixes and it has been found that optimum utilization of quarry dust up to 30% can been done to produce SCC without compromising with its properties.

scholarly journals Flexural, Tensile and Compressibility Behavior of Self Compacting Concrete by using Glass Fibers

2019 ◽  
Vol 9 (2) ◽  
pp. 1094-1098
Keyword(s):  
Aspect Ratio ◽  
Volume Fraction ◽  
Glass Fibers ◽  
Fiber Reinforced ◽  
Self Compacting Concrete ◽  
Split Tensile Strength ◽  
Glass Fiber Reinforced ◽  
Fine Aggregates ◽  
Fresh State ◽  
Hardened State

“Fiber Reinforced Self Compacting Concrete” (FRSCC) is composed of cement, different sizes of coarse and fine aggregates, which integrate with fiber. In this current investigation, M40 grade Self Compacting Concrete reinforced with glass fibers has been developed using the Nan Su method. Fresh state and hardened state properties of Glass Fiber Reinforced Self Compaction Concrete are studied for glass fibers of different aspect ratio (875, 1285 & 1714) and percentage of volume fraction (0, 0.25, 0.5, 0.75 & 1). From the investigation carried out it is found that incorporation of glass fibers of aspect ratio 1285 and percentage of volume fraction 0.5 to SCC attains better compressive and flexural strength compared to other mixtures and also incorporation of glass fibers of aspect ratio 1285 and percentage of volume fraction 0.75 to SCC attains better split tensile strength compared to other mixtures.

scholarly journals The Effects of Using Steel Fibers on Self Compacting Concrete Properties: A Review

2020 ◽  
Vol 38 (11A) ◽  
pp. 1666-1675
Author(s):  
Shubbar J. Kadhim
Keyword(s):  
Aspect Ratio ◽  
Literature Review ◽  
Volume Fraction ◽  
Steel Fibers ◽  
Peak Performance ◽  
Self Compacting Concrete ◽  
Direction Parallel ◽  
Concrete Properties ◽  
Fresh State ◽  
Hardened Properties

In this literature review steel fibers reinforced self-compacting concrete properties in fresh and hardened states and factors effecting on them were studied. In spite of high workability of self- compacting concrete, using of steel fibers depending on their length, aspect ratio, shapes and volume fraction can cause detrimental effects on it. Using of steel fibers improves hardened properties especially flexural and post peak performance, and this improvement depends on how fibers can distribute and orientate in fresh state.  The better hardened properties can obtain when fibers aligned and orientated in the direction parallel to tensile stress.

scholarly journals Influence of Granite Cutting Waste and Recycled Concrete on Properties of Self Compacting Concrete

2019 ◽  
Vol 8 (4) ◽  
pp. 205-208
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Coarse Aggregate ◽  
Strength Test ◽  
Recycled Concrete ◽  
Fine Aggregate ◽  
Self Compacting Concrete ◽  
Slump Flow ◽  
Hardened Properties ◽  
Passing Ability

This paper explains the combined effect of granite cutting waste and recycled concrete on the workability and mechanical properties of self compacting concrete. Experimental plan is divided in such a way that granite cutting waste is replaced with fine aggregate at 0, 20,40,60,80 and 100% proportions. Recycled concrete is replaced with the coarse aggregate starting from 20 to 100%. Total 36 mixes were designed to check the fresh and hardened properties. Slump flow and T500, v-funnel and L-box test are conducted to know the flow ability and passing ability of concrete. To study the hardened properties compressive strength, flexural strength test values are to be collected.

Experiment for the Mix Proportion Design of Green and Self-Compacting C40 Concrete

2013 ◽  
Vol 634-638 ◽  
pp. 2680-2683
Author(s):  
Sheng Ju Zhang ◽  
Xin Gang Wang ◽  
Su Rui Wang
Keyword(s):  
Construction Industry ◽  
Coarse Aggregate ◽  
Volume Fraction ◽  
Raw Materials ◽  
The Self ◽  
Mineral Admixtures ◽  
Special Significance ◽  
Self Compacting Concrete ◽  
Green Concrete ◽  
Mix Proportion

The self-compacting concrete is playing more and more important role in the construction industry with the advantages of greater mobility, better stability, and excellent character of filling the gap through capacity. There are different raw materials and construction conditions in each region, so, the research and development of the self-compacting concrete has a special significance according to the specific circumstances of each region. In this study, the parameters of the volume of coarse aggregate, mortar volume, the volume fraction of the sand, the mineral admixtures ash and cementatious coefficient were selected and calculated, and the C40 self-compacting green concrete was successfully configured.

scholarly journals Performance evaluation of mechanical properties of self-compacting concrete using artificial neural network

2020 ◽  
Vol 9 (1) ◽  
pp. 104
Author(s):  
Arabi N.S.Al qadi ◽  
Madhar Haddad
Keyword(s):  
Neural Network ◽  
Mechanical Properties ◽  
Mineral Admixtures ◽  
Test Results ◽  
Self Compacting Concrete ◽  
Predictive Capacity ◽  
Aggre Gate ◽  
The Neural Network ◽  
Hardened Properties ◽  
Local Materials

This experimental study was undertaken to investigate the effects of using local materials (cement, fly ash, super-plasticizer, coarse aggre-gate, and sand) on the mechanical properties of Self-Compacting Concrete (SCC). For this purpose, a total of 31 mixtures of SCC were prepared by the neural network design methods. Furthermore, based on the experimental results, the neural network model-based clear for-mulations were developed to predict the mechanical properties of SCC. The test results have shown that mineral admixtures were very effective on hardened properties of SCC. In addition, it was found that the developed model by using neural network appeared to have a high predictive capacity of hardened properties of SCC with respect to regression and experimental.  

scholarly journals Research on Self Compacting Concrete: A Futuristic Concrete

2019 ◽  
pp. 439-445
Author(s):  
Abdul Bari J ◽  
Umamageshwaran S
Keyword(s):  
Construction Industry ◽  
Basic Type ◽  
Mineral Admixtures ◽  
Fibrous Materials ◽  
Self Compacting Concrete ◽  
Construction Time ◽  
Slump Flow ◽  
Literature Reviews ◽  
The World ◽  
And Behavior

Concrete is most widely used in the construction industry and now-a-days Self compaction concrete is used because of its easy flow able properties and reduction in construction time. Self compacting concrete (SSC) is a basic type of concrete that does not required any kind of compaction or vibration. SCC was first developed by Okamura in Japan during the year 1980. This type of concrete flows easily around the reinforcement and into all corners of formwork and also it saves time, labor and energy. Different admixtures are used to produce effective self compacting concrete (SCC). The workability characteristics of SCC will be evaluated by the following tests like Slump Flow, V- Funnel, L-box Test. Many researches were carried out around the world with regards to different applications on properties and mix proportions. This paper includes the literature reviews related to behavior of self compacting concrete also deals with the strength and behavior of self compacting concrete using fibrous materials and mineral admixtures.

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