scholarly journals Industrial Wastes as Alternative Materials to Fine Aggregates in Triple Blend Self Compacting Concrete – a Sustainable Technological Solution

2019 ◽  
Vol 268 ◽  
pp. 012133
Author(s):  
R P Divith Kumar ◽  
Bharathi Ganesh ◽  
Sharada Bai ◽  
B K Narendra ◽  
N Venkateswaran
Keyword(s):  
Industrial Wastes ◽  
Technological Solution ◽  
Self Compacting Concrete ◽  
Fine Aggregates ◽  
Alternative Materials

scholarly journals Sustainable use of Industrial Wastes as Replacement for Fine and Coarse Aggregate in Production of Self Compacting Concrete – A State of the Art

2020 ◽  
Vol 9 (4) ◽  
pp. 2580-2587
Keyword(s):  
Steel Slag ◽  
Sustainable Use ◽  
Copper Slag ◽  
Industrial Wastes ◽  
Waste Materials ◽  
Self Compacting Concrete ◽  
Industry Waste ◽  
Coarse Aggregates ◽  
Fine Aggregates ◽  
Concrete Production

From recent global research developments, lot of natural and artificial materials are coming from industries those are normally discarded or used as landfills are investigated for potential construction applications. There are different industry waste materials like steel slag, copper slag, electric furnace slag etc., which are used in various types of concretes such as conventional, geo-polymer self-compacting concretes. Now a day’s utilization of Self- Compacting Concrete (SCC) is increasing speedily because of its attractive characteristics like effective fresh, mechanical and durability properties and its large applications in construction. In addition to this, SCC materials are associated with sustainability issues. Necessity of SCC expected to continuously increases with increasing developments around the world. Therefore required an ideal solution and sustain technology; such as utilization of alternative materials. The present study explains application of industrial waste materials to replace fine and coarse aggregates in self-compacting concrete production. Also, effective limitations in using some of the waste materials as sustainable alternatives for coarse and fine aggregates have been mentioned. From this review, it is evident that factors like carbon emissions, energy for production and cost production of SCC can be notably decreased by incorporating of waste materials in place of fine and coarse aggregates in Self-Compacting Concrete.

Self-Compacting and Conventional Concrete with Mineral Waste: Fresh and Hardened State Properties

2012 ◽  
Vol 517 ◽  
pp. 547-555 ◽  
Author(s):  
Edgar Bacarji ◽  
V.C. Marques ◽  
Romildo Dias Toledo Filho
Keyword(s):  
Attractive Alternative ◽  
Self Compacting Concrete ◽  
Natural Sand ◽  
Conventional Concrete ◽  
Environmental Preservation ◽  
State Tests ◽  
Fine Aggregates ◽  
Alternative Materials ◽  
Hardened State ◽  
Mineral Waste

Environmental preservation has been a theme debated in virtually every country in the world. Many measures are being taken to reduce the environmental impact due to unplanned development. Growing environmental restrictions to the exploitation of sand from riverbeds have resulted in a search for alternative materials to produce fine aggregates, particularly near to larger metropolitan areas. Artificial fine aggregates then appear as an attractive alternative to natural fine aggregates for concrete. This work is the final part of a study about the use of residues in concretes. Conventional Concrete (CC) and Self-compacting concrete (SCC) were developed replacing the natural sand by two types of mineral waste. Fresh state tests such as slump-flow, L-box, V-funnel test and column test were performed according to the Brazilian standards. The rheological characteristics (yield stress and plastic viscosity) of the SCC were determined using the BTRHEOM rheometer. At the hardened state, compressive strength was determined at 3, 14 and 28 days of age. Modulus of elasticity test was carried out at 28 days. Curves to mixture design were obtained to SCC and CC. For all mixtures and properties analyzed the good performance of the mineral waste used was proven. Finally and more important, it was demonstrated that it is possible to obtain structural self-compacting concrete, self-compacting concrete without structural purposes and conventional concrete by using mineral waste that works like fine aggregates and that on the other hand, without any destination, would cause serious environmental impacts.

scholarly journals Thermal characterization of hydrated eco-friendly clinkers produced from pulp and paper mill waste

Cerâmica ◽  
2018 ◽  
Vol 64 (371) ◽  
pp. 311-317 ◽  
Author(s):  
L. Simão ◽  
N. J. Lóh ◽  
D. Hotza ◽  
F. Raupp-Pereira ◽  
J. A. Labrincha ◽  
...  
Keyword(s):  
Thermal Characterization ◽  
Paper Mill ◽  
Pulp And Paper ◽  
Industrial Wastes ◽  
Pulp And Paper Mill ◽  
Paper Mills ◽  
Bet Analysis ◽  
Alternative Materials ◽  
Clinker Production

Abstract Industrial wastes from pulp and paper mills are potentially useful materials to use as alternative materials in clinker production. In this study, eco-friendly clinkers were obtained using only waste as feedstock. Eco-friendly clinker with different C3S and C2S contents were produced and hydrated for 7 days at 40 °C, or for 28 and 90 days at room temperature. The potentialities of these waste and the products obtained were revealed through chemical (XRF), thermal (DTA/TG) and surface area (BET) analysis. For comparison, a common ordinary Portland cement (OPC) was tested. As expected, the hydration rate of formulations presenting higher C3S content was higher, generating higher amounts of Ca(OH)2. Furthermore, the amount of Portlandite formed was lower when compared to OPC.

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.

Fresh Properties of Self-Compacting Concrete Integrating Coal Bottom Ash as a Replacement of Fine Aggregates

2015 ◽  
Vol 1125 ◽  
pp. 370-376
Author(s):  
Ahmad Farhan Hamzah ◽  
Mohd Haziman Wan Ibrahim ◽  
Norwati Jamaluddin ◽  
Ramadhansyah Putra Jaya ◽  
Norul Ernida Zainal Abidin
Keyword(s):  
Bottom Ash ◽  
Resistance Index ◽  
Ash Content ◽  
Fresh Properties ◽  
Self Compacting Concrete ◽  
Segregation Index ◽  
Coal Bottom Ash ◽  
Slump Flow ◽  
Fine Aggregates ◽  
The Stability

The influence of coal bottom ash on fresh properties of self-compacting concrete (SCC) were presented in this paper. Self-compacting concrete mixtures were produced by 0.40 water/powder ratio and coal bottom ash as a replacement of fine aggregates in varying percentages of 0%, 10%, 15%, 20%, 25% and 30%. The fresh concretes were tested for the key workability belongings of self-compacting concrete such as passing and filling abilities and segregation resistance. The fresh properties were investigated by slump flow; T500 spread time, sieve segregation and L-box test. It was found that the slump flow decreased whereas the T500 spread time increased with higher coal bottom ash content. The L-box blocking ratios changed from 0.92 to 0.65 and were mostly showed satisfactory blocking ratio. The presence of coal bottom ash improved the stability of SCC mixture and the segregation index obtained from sieve test reduced with greater bottom ash content. It can be concluding that the filling and passing ability of SCC decreased when the amount of coal bottom ash content increased. In addition, the segregation resistance index decreased with higher coal bottom ash content.

scholarly journals Comparative Study of Self-Compacting Concrete Containing Lightweight and Normal Aggregates

2019 ◽  
Vol 27 (2) ◽  
pp. 1-8
Author(s):  
Ramamohanrao Pannem ◽  
Padmaja P. Kumar
Keyword(s):  
Fly Ash ◽  
Fresh Concrete ◽  
Void Content ◽  
Self Compacting Concrete ◽  
Simple Method ◽  
Coarse Aggregates ◽  
Concrete Properties ◽  
Round Shape ◽  
Fine Aggregates ◽  
Ash Aggregates

AbstractBased on the available literature, a simple method was adopted to calculate the packing density of aggregates and thereby reduce their void content by optimising their packing aggregates and by using two different sizes of coarse aggregates and fine aggregates. This study provides an understanding of the way in which the shape of aggregates affects the properties of self-compacting concrete (SCC). The fresh, hardened, and durable properties of SCC with normal and lightweight fly ash coarse aggregates are found at the corresponding age of the curing. Their values were compared with respect to SCC containing normal aggregates. A mix with fly ash aggregates was found to have better fresh concrete properties due to the round shape of the aggregates. After the packing of the aggregates, this mix was found to have better mechanical and durability properties than all the other concrete mixes.

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 Research on Eco-friendly Alkali Activated Concrete Incorporating Industrial Wastes

2019 ◽  
Vol 8 (9S2) ◽  
pp. 477-482
Keyword(s):  
Raw Materials ◽  
Sodium Hydroxide Solution ◽  
Industrial Wastes ◽  
Liquid Sodium ◽  
Alkali Activation ◽  
Waste Glass Powder ◽  
Fine Aggregates ◽  
Alkaline Activator ◽  
Alkali Activated Concrete ◽  
Alkali Activated

In the present scenario, the production of green and sustainable concrete has become a must to substitute the ordinary Portland cement (OPC) concrete. It is an eminent fact that the manufacture of OPC requires burning of its raw materials which lead to a huge amount of carbon dioxide liberation; thus it requires a large amount of energy dissipation. The concrete produced using alkali activation has become renowned methods to replace the conventional OPC, which gives an answer to find a way to produce environmentally friendly concrete. In the current study, the alkaline activator used to activate the binder was sodium hydroxide solution dispersed in liquid sodium silicate. The utilization of industrial dissipate materials such as GGBS, fly ash, and waste glass powder was used as the binding ingredients, and stone crusher dust was used as fine aggregates. The experimental investigation showed that a quality concrete can be easily produced using alkali activation of industrial wastes satisfying its strength requirements. The statistical models developed shown that there is a significant relationship between various cube and cylinder strengths. Thus alkali-activated concrete(AAC) can effectively reduce the environmental hazards associated with OPC concrete, which also provides an effective way of utilizing major industrial byproducts

scholarly journals A Study on Fresh and Hardened Properties of Concrete with Partial Replacement of Bottom Ash as a Fine Aggregate

2021 ◽  
Keyword(s):  
Industrial Waste ◽  
Raw Materials ◽  
Bottom Ash ◽  
Industrial Wastes ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Research Papers ◽  
Fine Aggregates ◽  
Concrete Production ◽  
Hardened Properties

Abstract. To overcome the shortage of natural resources for the production of concrete, many waste materials are used to replace the raw materials of concrete. In this way, bottom ash is one of the major industrial wastes which shall be used as the replacement of materials in concrete production. It shall be used to replace the materials either up to one-third. This review brings out the evaluation of the industrial waste material which can be repeatedly used as a substitution for concrete as fine aggregate. This paper reviewed the use of industrial waste i.e., bottom ash as fine aggregate in the concrete. The parameters discussed were physical, chemical, fresh, and hardened properties of the concrete with partial replacement of bottom ash. By reviewing some of the research papers, concluded that 10-15% replacement of fine aggregates is acceptable for all the properties of concrete. High utilization of natural sources -gives the pathway to produce more industrial wastes which are responsible for the development of new sustainable development.

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