scholarly journals Periwinkle Shell as Mixing Ingredient in Concrete: A Review

CONSTRUCTION ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 21-30
Author(s):  
HANIS NADIAH RUSLAN ◽  
Khairunisa Muthusamy ◽  
Sharifah Maszura Syed Mohsin ◽  
M. S. Kirgiz
Keyword(s):  
Mechanical Properties ◽  
Natural Resources ◽  
Environmental Pollution ◽  
Coarse Aggregate ◽  
Cement Replacement ◽  
Durability Properties ◽  
Natural Aggregate ◽  
Concrete Materials ◽  
Periwinkle Shell ◽  
Growing Population

Growing population which also pushes for rising demand for seafood results in a generation of seashells which are thrown as environmental pollution waste after the edible meat is consumed. Meanwhile, the utilisation of natural resources as mixing ingredients for the production of concrete materials continues to increase over the year. The use of periwinkle shells as mixing ingredients in concrete materials can lower the dependency on natural aggregate supply. This paper discusses the properties of periwinkle shell and method of treatment prior to their usage as a cement and coarse aggregate as well as the mechanical properties of concrete produced using this seashell waste. Overall, the replacement of periwinkle shell as cement and coarse aggregate must be integrated in a specified percentage to enhance the performance of the concrete. For cement replacement, 5% of replacement gives the highest strength, meanwhile 10% of replacement as coarse aggregate can meet the desired strength. The increase in the use of periwinkle shell quantity as cement or coarse aggregate replacement reduces concrete workaibility. The integration of periwinkle shell influences the compresssive strength of concrete. Accomplishment in replacing periwinkle shell as cement and coarse aggregate would reduce pollutiion due to shell dumping and save natural resources. However, further investigation in terms of durability properties is recommended.

Study on Performance of Recycled Aggregate Concrete

2011 ◽  
Vol 477 ◽  
pp. 280-289 ◽  
Author(s):  
Shao Wei Yao ◽  
Zhen Guo Gao ◽  
Chang Rui Wang
Keyword(s):  
Mechanical Properties ◽  
Coarse Aggregate ◽  
Physical And Mechanical Properties ◽  
Recycled Aggregate Concrete ◽  
Recycled Aggregate ◽  
Chemical Solution ◽  
Aggregate Concrete ◽  
Recycled Coarse Aggregate ◽  
Natural Aggregate ◽  
Strength And Durability

The properties of recycled coarse aggregate and the slump, the physical and mechanical properties and durability of recycled aggregate concrete were studied through tests. The results indicate that the slump, compressive strength and durability of concrete with recycled aggregate are lower than that of concrete with natural aggregate when recycled coarse aggregate fully absorbs water. However, the slump can be similar to that of concrete with natural aggregate. The properties of recycled aggregate concrete can be improved by strengthening the recycled coarse aggregate, and it is also found that the recycled coarse aggregate strengthened by grinding is superior to that soaked by chemical solution.

scholarly journals Effects of the Variety and Content of Natural Pozzolan Coarse Aggregate on the Thermo-Mechanical Properties of Concrete

2021 ◽  
Vol 12 (4) ◽  
pp. 5405-5415
Keyword(s):  
Mechanical Properties ◽  
Thermal Conductivity ◽  
Compressive Strength ◽  
Coarse Aggregate ◽  
The Other ◽  
Natural Pozzolan ◽  
Coarse Aggregates ◽  
Natural Aggregate ◽  
Middle Atlas

The present study investigated the effects of the variety and content of three natural pozzolan coarse aggregates on concrete. Natural pozzolan aggregates have been obtained from three volcanoes (Boutagrouine, Timahdite, and Jbel Hebri) located in the Middle Atlas region in Morocco. The three pozzolans studied were characterized, and then a comparison was made by replacing the natural aggregate with the pozzolan aggregate in the concrete in different percentages, namely 25, 50, and 100 % in volume. The results showed that the variety and content of pozzolan aggregate have a significant impact on the properties of concrete, primarily caused by the characterization of pozzolan aggregate. The density of concrete decreases with the addition of pozzolan aggregate, which decreases depending on the type of pozzolan aggregate used. The highest compressive strength was measured in the concrete specimens prepared with aggregate BP while the lowest compressive strength was noted in the concrete specimens prepared with aggregate RP. On the other hand, the substitution of NA at 100% by BP, GP, and RP aggregates leads to a decrease in the thermal conductivity of about 67%, 62%, and 55% respectively.

scholarly journals Effect of Silica Fume on Mechanical and Durability Properties of Recycled Coarse Aggregate Concrete

2019 ◽  
Vol 8 (4S2) ◽  
pp. 68-72
Keyword(s):  
Silica Fume ◽  
Coarse Aggregate ◽  
Mineral Admixture ◽  
Mix Design ◽  
Recycle Aggregate ◽  
Aggregate Concrete ◽  
Durability Properties ◽  
Natural Aggregate ◽  
Water Sorptivity ◽  
Sorptivity Test

Reusing concrete is the best choice to diminish the eagerness on mind blowing standard assets and to oblige the total of waste which is engineered in landfills. Reused concrete has been regularly used as an unbound material as a touch of dams, bases, and sub-bases. RAC has in like way been utilized as a piece of the improvement of asphalts and wastes yet in less case as the examination in this field is not the most outrageous utmost of RAC has not yet been investigated. In this investigation the reused total was utilized as supplanting with 20%, 40%, 60% and 80% by substitution of typical aggregate. Standard Ordinary Portland cement was supplanted with 10% of mineral admixture silica fume. Tests were coordinated to choose the mechanical properties and durability properties such us rapid chloride penetrability test and water sorptivity test. The results show that increasing the recycle aggregate percentage above 40% with natural aggregate, small modifications to the mix design may be adopted to secure that comparable property to natural aggregate concrete is attained

scholarly journals Behaviour of Self-Compacting Concrete incorporating Natural Perlite used as Part of Cement and as Aggregates

2021 ◽  
Vol 16 (2) ◽  
pp. 115-132
Author(s):  
Sabria Malika Mansour ◽  
Youcef Ghernouti
Keyword(s):  
Mechanical Properties ◽  
Elastic Modulus ◽  
Flexural Strength ◽  
Natural Resources ◽  
Environmental Pollution ◽  
Cementitious Material ◽  
Self Compacting Concrete ◽  
Supplementary Cementitious Material ◽  
Consumption Cost ◽  
Natural Aggregates

Abstract Perlite, a natural glassy volcanic rock could be used as supplementary cementitious material to reduce environmental pollution and the consumption of precious natural resources in the concrete industries. The aim of this work is to assess natural perlite used as 50% aggregates substitution by volume (sand or gravel) and as 10%, 15%, 20% cement substitution in self-compacting concrete. Workability characteristics and mechanical properties were analysed. Results showed that replacing 50% of natural aggregates with 50% of perlite aggregates or substituting cement with 10% of perlite powder generated the best workability characteristics and improved compressive, flexural strength, and elastic modulus of concrete at 28 days. Moreover, the results were combined to develop correlations that prove to be good between mechanical properties of self-compacting. Using perlite as aggregates offers a new source of supply and saves natural aggregates. Also, perlite used as cement substitution helps to reduce PC consumption, cost, and CO2 emission.

The Performance Evaluation and Application of Recycled Concrete in Constructions

2013 ◽  
Vol 838-841 ◽  
pp. 127-130
Author(s):  
Chao Zhao ◽  
Jun Wang
Keyword(s):  
Mechanical Properties ◽  
Performance Evaluation ◽  
Natural Resources ◽  
Seismic Performance ◽  
Work Performance ◽  
Recycled Concrete ◽  
Sustainable Utilization ◽  
Shear Properties ◽  
Durability Properties ◽  
Waste Concrete

In recent years, with the urbanization in our country speeding up, the phenomena of wasting concrete due to the demolition and renovation are very common. For our country, resources are very scarce. How to reuse the waste concrete, so as to keep the sustainable utilization of building resources, is a topic worthy of deep thinking. In order to realize the full use of recycled concrete, this paper points out that the use of recycled concrete is the key to keep the sustainable utilization of natural resources. Based on this, it discusses the work performance, mechanical properties, durability properties, shear properties, seismic performance of recycled concrete and its performance evaluation.

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.

scholarly journals Durability Properties of Modified Self Compacting Concrete with Recycled Concrete Aggregate

2019 ◽  
Vol 9 (1) ◽  
pp. 5102-5106
Keyword(s):  
Natural Resources ◽  
Coarse Aggregate ◽  
Recycled Concrete ◽  
Recycled Aggregate ◽  
Sustainable Construction ◽  
Concrete Aggregate ◽  
Recycled Concrete Aggregate ◽  
Self Compacting Concrete ◽  
Demolition Waste ◽  
Durability Properties

In recent years, sustainable construction materials are highly recommended in construction projects due to reduce the degradation of natural resources. An experimental investigation with varying percentages of coarse recycled concrete aggregate was conducted on self-compacting concrete. The primary goal was to explore the suitability and impact of coarse recycled aggregate in concrete fresh generation. The demand for building products has risen tremendously in latest years, so the quantity of building and demolition waste has increased, placing enormous stress to the atmosphere. The use of recycled aggregate in concrete is a suitable solution to extend the lifetime of natural resources and thereby lead to sustainable developments in construction field. In this investigation, SCC is modified by recycled coarse aggregate (RCA) in various percentages of natural coarse aggregate (NCA) substitutes from 0 percent to 100 percent with a 20 percent increase. Durability and the mechanical properties of modified SCC was determined. From the results it is revealed that the substitution of RCA in the place of NCA significantly improved the durability properties.

Experimental Study on Properties of a Kind of New Concrete

2011 ◽  
Vol 250-253 ◽  
pp. 3475-3478
Author(s):  
Mei Xiong
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Performance Test ◽  
Coarse Aggregate ◽  
High Strength ◽  
Paper Study ◽  
Self Compacting Concrete ◽  
Performance Gap ◽  
Dry Mixing ◽  
Concrete Materials

Dry-mixing self-compacting concrete (DSCC) is a kind of new concrete composite materialswhich based on self-compacting concrete vibration. DSCC was prepared with the cement, the coarse aggregate and sand of high strength and some cement replacement materials that had the better crack resistance. And it has the characteristics of filling performance, gap trafficability and anti- segregating like self-compacting concrete. The paper study on the basic mechanical properties and anti-carbonization ability of DSCC through concrete performance test, the results indicate that the basic mechanical properties and durability of DSCC better significantly than common concrete materials.

scholarly journals Study of the Properties of Full Component Recycled Dry-Mixed Masonry Mortar and Concrete Prepared from Construction Solid Waste

2021 ◽  
Vol 13 (15) ◽  
pp. 8385
Author(s):  
Zhenwen Hu ◽  
Zhe Kong ◽  
Guisheng Cai ◽  
Qiuyi Li ◽  
Yuanxin Guo ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Solid Waste ◽  
Coarse Aggregate ◽  
Recycled Concrete ◽  
Fine Aggregate ◽  
Replacement Rate ◽  
Substitution Rates ◽  
Natural Aggregate ◽  
Mixed Mortar ◽  
Masonry Mortar

Solutions are needed to solve the problem of a large amount of construction solid waste and a shortage of natural aggregate (coarse and fine aggregates). In this paper, simple-crushed coarse aggregate (SCRCA) and simple-crushed fine aggregate (SCRFA) were obtained by simple-crushing of construction solid waste. On this basis, SCRCA and SCRFA were treated with particle-shaping to obtain particle-shaping coarse aggregate (PSRCA) and particle-shaping fine aggregate (PSRFA), and the recycled powder (RP) produced in the process of particle-shaping was collected. Under the condition of a 1:4 cement-sand ratio, RP was used to replace cement with four substitution rates of 0, 10%, 20%, and 30%, and dry-mixed masonry mortar was prepared with 100% SCRFA, PSRFA, and river sand (RS). The basic and mechanical properties and microstructure of hydration products of dry-mixed mortar were analyzed, and the maximum substitution rate of RP was determined. Under the condition that the amount of cementitious material is 400 kg/m3 and the RP is at the maximum replacement rate, three different aggregate combinations to prepare concrete are the 100% use of SCRCA and SCRFA, PSRCA and PSRFA, and RS and natural aggregate (NCA); the workability, mechanical properties, and aggregate interface transition zone of the prepared concrete were analyzed. The results show that when the replacement rate of RP is less than 20%, it has little effect on the properties of products. The performance of PSRCA and PSRFA after treatment is better than that of SCRCA and SCRFA. Under different RP substitution rates, the performance of dry-mixed mortar prepared with PSRFA is very close to that prepared with RS. The performance of recycled concrete prepared with PSRCA and PSRFA is also very close to that of products prepared with NCA and RS. The failure morphology of PSRCA and RSRFA concrete is also similar to that of NCA and RS concrete.

scholarly journals Characterisation of Fibre Reinforced Resin Concrete

2022 ◽  
Vol 58 (4) ◽  
pp. 158-170
Author(s):  
Kiruthika Chandrasekaran ◽  
Lavanya Prabha Srinivasan ◽  
Neelamegam Meyappan
Keyword(s):  
Mechanical Properties ◽  
Coarse Aggregate ◽  
Poisson Ratio ◽  
Preliminary Investigation ◽  
Aggregate Size ◽  
Cement Concrete ◽  
River Sand ◽  
Polyester Resins ◽  
Strain Behavior ◽  
Durability Properties

Resin Concrete uses polymeric resin to replace cement concrete. Four types of polyester resins were identified with Methyl methacrylate as catalyst, calcium carbonate and fly ash as fillers along with river sand and coarse aggregate size of 10mm, 6mm were used to produce resin concrete. Seventy-two trial batches were carried out for preliminary investigation targeting compressive strength of more than 80 MPa (11.6 ksi) and four batches were shortlisted. These four batches along with the addition of glass fiber were taken for detailed investigation of stress strain behavior, young�s modulus, Poisson ratio, various correlative equations among their mechanical properties and durability properties. Developed mix can be recommended for manufacturing various polymer products.

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