scholarly journals Strength and durability properties of waste steel slag mixed concrete

2021 ◽  
Vol 42 (1) ◽  
Author(s):  
Abhijit Warudkar ◽  
S. Elavenil
Keyword(s):  
Coarse Aggregate ◽  
Steel Slag ◽  
Construction Materials ◽  
Weather Conditions ◽  
Cement Concrete ◽  
Durability Properties ◽  
Natural Aggregates ◽  
External Forces ◽  
Strength And Durability ◽  
Steel Industries

The exploration of natural aggregates for construction leads to the degradation of the environment; thus, the development of environment-friendly construction materials, such as steel slag, is being promoted. Disposal of steel slag without affecting ecology is the central issue of concern, as steel industries produce a million tonnes of steel slags as a by-product every year. To address this issue, we studied the potential of a waste steel slag to use as a replacement of coarse aggregate in the cement concrete. We observed that the mixing of waste steel slag with concrete improves the mechanical and durability properties of the concrete. The abrasion properties of steel slag concrete are comparable with a coarse aggregate concrete. The study concludes that the use of steel slag in concrete improves the physical properties of the cement concrete, and thus, steel slag concrete can be used for building floorings, pavements, or concrete surfaces, which expose to the external forces and severe weather conditions.

scholarly journals Effect of Influence of Metakaolin and Shredded Plastic Waste on Strength and Durability Properties of M20 Grade Concrete

2019 ◽  
Vol 8 (2) ◽  
pp. 4170-4175
Keyword(s):  
Natural Resources ◽  
Industrial Waste ◽  
Coarse Aggregate ◽  
Environmental Problems ◽  
Plastic Waste ◽  
Strength Parameters ◽  
Durability Properties ◽  
Natural Aggregates ◽  
Strength And Durability ◽  
Durability Performance

The production of cement liberates the equal amount of CO2 into the environment. This will results in various social and environmental problems. There is a need in determining the new cement materials from waste or industrial waste. Second, the extraction of natural aggregates from natural resources poses other environmental problems. So in this article, the experimental programme is conducted to determine the strength and durability performance of cement partially replaced with Metakaolin (MK) (0%, 2.5%, 5%, 7.5% and 10%) and coarse aggregate substituted by shredded plastic waste (SPW) at 0.5% by weight. The main objective of this article was limited to analyzing the strength parameters along with the durability parameters.

Development of Lightweight Concrete using Industrial Waste Palm Oil Clinker

2021 ◽  
Author(s):  
Ibrahim Al-Ani ◽  
◽  
Wan Hamidon ◽  
Wan Mohtar ◽  
Basma Alwachy ◽  
...  
Keyword(s):  
Palm Oil ◽  
Oil Palm ◽  
Lightweight Concrete ◽  
Light Weight ◽  
Durability Properties ◽  
Light Weight Concrete ◽  
Water Absorption Test ◽  
Natural Aggregates ◽  
Definition Of ◽  
Strength And Durability

Concrete is a major material used in the construction of buildings and structures in the world. Gravel and sand are the major ingredients of concrete but are non-renewable natural materials. Therefore, the utilisation of palm oil clinker (POC), a solid waste generated from palm oil industry is proposed to replace natural aggregate in this research to reduce the demand for natural aggregates. One mix of ordinary concrete as control concrete; while four mix proportions of oil palm clinker concrete were obtained by replacing 25 %, 50 %, 75 %, and 100 % of gravel and sand of control concrete with coarse and fine oil palm clinker respectively by volume, with same cement content and water cement ratio. Compressive strength test was carried out of concretes with different percentages of oil palm clinker; whereas water absorption test according to respective standard, were carried out to determine the durability properties of various mixes. Based on the results obtained, the study on the effect of percentage of clinker on strength and durability properties was drawn. According to ACI classification of light weight concrete only the 100 percentage replacement can achieve the definition of light weight concrete since its density less than 1900 kg/m3 and strength larger than 17 MPa. Eventually the 25 % replacement of the normal aggregate by the OPC will improve the strength and durability of the concrete.

scholarly journals Mechanical and durability properties of the concrete with copper slag

2021 ◽  
Vol 20 (2) ◽  
pp. 359-370
Author(s):  
S. Jagan ◽  
◽  
T. R. Neelakantan ◽  
R. Gokul Kannan ◽  
◽  
...  
Keyword(s):  
Steel Slag ◽  
Construction Materials ◽  
Chloride Ion ◽  
Copper Slag ◽  
Fine Aggregate ◽  
Suitable Alternative ◽  
Durability Properties ◽  
Chloride Ion Penetration ◽  
Alternative Materials ◽  
Physical And Chemical

Increased development in the field of construction with the use of sand, stones etc. depletes the natural resources and thus resulted in the scarcity of construction materials. Furthermore, generation of waste from several industries such as steel slag, copper slag, blast furnace slag etc. are being dumped in the nearby landfills leading to disposal problems. The scarcity of construction materials necessitated the utilization of suitable alternative materials with equivalent physical and chemical characteristics. This paper investigates the suitability of copper slag (CS) as a substitute to natural fine aggregate (NFA) in the concrete. The concrete mixes are prepared with 0%, 10%, 30%, 50%, 70% and 100% of copper slag at 0.45 w/c ratio. The behaviour of CS in the concrete was assessed by hardened properties such as compression, tension and flexure at 7, 14, 28 and 90 days and durability properties such as water absorption, porosity and chloride ion penetration at 56 days. Results indicate that the replacement of CS beyond 50% affects properties of the concrete; however increased curing improved the properties of the concrete at higher replacement levels. Characterization studies such as XRD and SEM was performed to examine the effect of CS on the properties of the concrete.

scholarly journals Durability of Geopolymer Concrete with Scrap Steel Slag Coarse Aggregate

2020 ◽  
Vol 9 (3) ◽  
pp. 2415-2417
Keyword(s):  
Coarse Aggregate ◽  
Concrete Strength ◽  
Steel Slag ◽  
Acid Resistance ◽  
Experimental Tests ◽  
Geopolymer Concrete ◽  
Construction Sector ◽  
Cement Concrete ◽  
Sustainable Concrete ◽  
Ambient Curing

Use of environmental friendly materials in concrete to make concrete sustainable is gaining importance, as the growth of the construction sector is rapid and massive in India. Such a sustainable concrete is the geopolymer concrete with scrap steel slag coarse aggregate. The concrete replaces cement and natural coarse aggregate by fly ash and scrap steel slag. Mechanical Strength of the concrete of M20 grade was evaluated and found suitable. Concrete strength has no role without the concrete being durable. Experimental tests were carried out to check the durability of the concrete and the results are presented in this paper. M20 grade geopolymer concrete with scrap steel slag coarse aggregate was tested after ambient curing for 28 days and the results are compared with M20 grade cement concrete with conventional Coarse aggregate. Durability was checked based on Water absorption, Acid resistance, Sulphate resistance and Sorptivity. The experimental results indicate that geopolymer concrete exhibit excellent durability than conventional cement concrete.

scholarly journals Flexural Behaviour of Geopolymer RC Beam with Scrap Steel Slag Coarse Aggregate

2019 ◽  
Vol 8 (4) ◽  
pp. 10872-10875
Keyword(s):  
Coarse Aggregate ◽  
Research Work ◽  
Steel Slag ◽  
Flexural Behavior ◽  
Rc Beam ◽  
Cement Concrete ◽  
Moment Capacity ◽  
Modeling And Analysis ◽  
Reinforced Cement ◽  
Ultimate Load Carrying Capacity

This research work aims adding further sustainability to the cement - less geopolymer concrete by replacing its natural gravel coarse aggregate by an industrial by-product, scrap steel slag. Geopolymer RC beam of grade M40 with 100% scrap steel as coarse aggregate was studied for its flexural behavior and compared with conventional reinforced cement concrete beam with gravel coarse aggregate. The specimens were tested under two-point static loading. The analysis was also carried out using ANSYS software. The study derived that in all stages, the performance of the geopolymer beam with scrap steel slag was marginally better than the conventional beam with gravel coarse aggregate. The ultimate load carrying capacity, deflection, service load and ductility factor of geopolymer RC beam with scrap steel slag coarse aggregate was comparable to the conventional cement concrete RC beam and is marginally higher. It is also found that conventional RC theory can be used in the calculation of moment capacity, deflection and crack width of the geopolymer beam of study and FE modeling and analysis using ANSYS were comparable to the experimental results.

Influence of Steel Slag on Compressive Strength and Durability of Concrete

2011 ◽  
Vol 704-705 ◽  
pp. 1051-1054
Author(s):  
Jian Ping Zhu ◽  
Qi Lei Guo ◽  
Xiang Gao ◽  
Dong Xu Li
Keyword(s):  
Compressive Strength ◽  
Research Study ◽  
Coarse Aggregate ◽  
Reference Sample ◽  
Steel Slag ◽  
Concrete Durability ◽  
Slag Powder ◽  
Steel Slag Powder ◽  
Strength And Durability ◽  
Better Than

The present research study investigates the compressive and durable properties of concretes with steel slag, a by-product of the conversion process of iron to steel. For this purpose, a reference sample and twenty-four concretes containing steel slag were tested. The steel slag fraction used was “5–20 mm”, and the surface area of steel slag powder was 450m2/kg. Compressive strength at 7 and 28 days, and chloride penetration properties were measured. It is concluded that steel slag can be used in the production of concrete. In addition, the steel slag concretes present satisfactory physical properties. When proper amount of steel slag powder and steel slag fraction were used the concrete properties can be better than the blank one. Keywords: Steel slag, cement, coarse aggregate, concrete, durability

scholarly journals Towards Sustainable Self-Compacting Concrete: Effect of Recycled Slag Coarse Aggregate on the Fresh Properties of SCC

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Hisham Qasrawi
Keyword(s):  
Steel Industry ◽  
Coarse Aggregate ◽  
Steel Slag ◽  
Fresh Properties ◽  
Self Compacting Concrete ◽  
Air Content ◽  
Coarse Aggregates ◽  
Slump Flow ◽  
Natural Aggregates ◽  
The Impact

Steel industry results in accumulation of steel slag wastes causing severe environmental problems. These wastes can be recycled and replace natural aggregates resulting in sustainable green concrete. In this research, natural aggregates in self-compacting concrete (SCC) are replaced, wholly or partly, by steel slag coarse aggregates that were produced by crushing by-product boulders obtained from the steel industry. Fresh properties, (workability, stability, bleeding, air content, and fresh density) are the crucial ones that affect the final properties of SCC. Therefore, it becomes important to evaluate the impact of SSA on the fresh properties of SCC mixes. The properties that are studied include stability, flowability, blocking, segregation, and bleeding. Furthermore, air content and fresh density are measured. In order to evaluate the impact of SSA on SCC properties, several testing methods are employed. Slump flow, V-funnel, column segregation, sieve segregation, segregation probe, U-shaped box, and VSI tests have been used in the study. The results show that it is possible to produce SCC using steel slag aggregate. Hence, green sustainable SCC can be produced. The results show that the fresh properties become sensitive for SSA replacement ratios exceeding 50%.

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