scholarly journals A Review on Self Compacting Concrete with Cementitious Materials and Fibers

2018 ◽  
Vol 8 (3) ◽  
pp. 2969-2974 ◽  
Author(s):  
N. A. Memon ◽  
M. A. Memon ◽  
N. A. Lakho ◽  
F. A. Memon ◽  
M. A. Keerio ◽  
...  
Keyword(s):  
Construction Industry ◽  
Cement Content ◽  
Developed Countries ◽  
Cementitious Materials ◽  
Normal Concrete ◽  
Conventional Concrete ◽  
Cement Replacement ◽  
Different Types ◽  
Construction Activity ◽  
Hardened State

Self-compacted concrete (SCC) is cast in the formwork without compaction and it fulfills the formwork due to its own weight. SCC is considered to have many advantages in comparison with conventional concrete like improved construction quality, faster construction activity, reduced cost etc. SCC is produced with the same ingredients of normal concrete. However, cementitious materials are also adopted to replace the cement content in SCC in order to use waste materials from industries and agricultural products. To further enhance the performance of SCC, different types of fibers are tried in order to produce fiber reinforced SCC. The fibers in the concrete bridge the cracks and diffuse the crack propagation which improves mechanical properties. In developed countries SCC has reasonable acceptance in construction industry but in developing countries like Pakistan has not gained acceptance. This paper is focused on undertaking a review of SCC with cement replacement and fiber reinforcement materials. The main objective of this paper is to compile the literature in order to understand the various properties of SCC in fresh and hardened state when these cement replacement materials and fibers are used.

Review Paper: Strength Performance of Eggshell as a Cement Replacement in Concrete

2021 ◽  
Vol 879 ◽  
pp. 22-33
Author(s):  
Adnan Zaidatul Syahida ◽  
Ariffin Nur Farhayu ◽  
Sharifah Maszura Syed Mohsin ◽  
Abdul Shukor Lim Nor Hasanah
Keyword(s):  
Mechanical Properties ◽  
Construction Industry ◽  
Carbon Dioxide Emissions ◽  
Egg Production ◽  
Paper Strength ◽  
Normal Concrete ◽  
Cement Production ◽  
Strength Performance ◽  
Cement Replacement ◽  
The Past

The numbers of Malaysian construction industry had been increasing in several years with the large construction building and infrastructures projects had been constructed. Therefore, these developments led to an increase of cement production. The production of cement will cause wider environmental implication such are air pollution, water pollution and soil pollution which are very dangerous for human health. This is due to the manufacturing of cement that release dust, toxic and carbon dioxide emissions, which is a significant contributor of greenhouse gases. To overcome this problem, several researches had been conducted for the past few decade to find a new waste material that have same mechanical properties which can replace cement content in construction. One of the most promising materials that shows great potential is eggshell as a cement replacement. It is reported that the global egg production will increase to about 90 million tons by 2030, therefore the waste of eggshell will be increased too. This paper study the mechanical properties of eggshell as a cement replacement in concrete. Several papers had been reviewed and the results are presented in order to shows the performance of eggshell in concrete. The result shows that the concrete with less than 15% replacement of eggshell produced higher compressive and tensile strength compared to normal concrete. Moreover, the flexural strength of concrete containing eggshell up to 20% replacement shows comparable results with normal concrete. From the results, by replacing cement with eggshell up to 15% show a good performance as well as can reduce the use of cement and reduce the eggshell wasted in landfill.

scholarly journals A Review on the Performance of Concrete Containing Non-Potable Water

2021 ◽  
Vol 11 (15) ◽  
pp. 6729
Author(s):  
Babar Ali ◽  
Rawaz Kurda ◽  
Jorge de Brito ◽  
Rayed Alyousef
Keyword(s):  
Construction Industry ◽  
Potable Water ◽  
Water Footprint ◽  
State Of The Art ◽  
Construction Materials ◽  
Negative Effects ◽  
Different Types ◽  
Hardened State ◽  
Technical Properties ◽  
Industrial Sewage

Construction industries consume huge amounts of potable water during activities such as washing of aggregates, stone crushing, manufacturing, and curing of concrete, mortars, grouts, and wetting of masonry bricks. It is also responsible for wastewater generated during the finishing and cleaning of buildings and construction equipment. Therefore, the water-footprint of construction industry cannot be ignored to reach the state-of-the art sustainability. This study reviewed the technical properties of construction materials made with non-potable water (NPW), i.e., domestic and industrial sewage. The study identified the positive and negative effects of non-potable water on the fresh- and hardened-state properties of concrete. This study also identified the gaps in the literature that can be analysed in order to produce reliable information related to the use of different types of NPW on the properties of concrete.

scholarly journals Geopolymer Concrete: A Review

2021 ◽  
pp. 5-8
Author(s):  
Gomasa Ramesh ◽  
Keyword(s):  
Greenhouse Gases ◽  
Construction Industry ◽  
Co2 Emissions ◽  
Cement Content ◽  
Geopolymer Concrete ◽  
Construction Sector ◽  
Conventional Concrete ◽  
Binding Material ◽  
The Cost ◽  
Cost Of Construction

Geopolymer Concrete is a new innovative type of concrete, and it is used widely in the construction industries. This type of concrete comes into place due to reduced cement content usage in the construction of structures. Already we are using cement as a binding material widely in the construction sector, but the problem is due to the cement content Co2 emissions are mainly produced and one more problem is greenhouse gases are increasing rapidly during the manufacturing of cement. Then after a lot of researchers, finally we got a geopolymer as a replacement for cement. By replacing cement content with geopolymer, we can reduce the cost of construction and reuse the structural materials. So, this type of concrete is different from standard conventional concrete. We can minimize Co2 and greenhouse gases’ problem in the atmosphere and make the structure an environmentally friendly solution. So, this type of concrete is very famous in the construction industry, and there are benefits also excellent. So, it can be used widely in construction sectors worldwide. This paper may help understand Geopolymer Concrete for everyone quickly. It gives a quick review of the Geopolymer Concrete.

scholarly journals Turning trash into an asset: a case study of prince sultan university campus waste

2020 ◽  
Vol 167 ◽  
pp. 06003
Author(s):  
Shabir Hussain Khahro ◽  
Tauha Hussain Ali ◽  
Zubair Ahmed Memon ◽  
Amjad Ali Panhwar ◽  
Anas Haribat
Keyword(s):  
Tensile Strength ◽  
Natural Resources ◽  
Construction Industry ◽  
Commercial Product ◽  
University Campus ◽  
Rapid Urbanization ◽  
Different Types ◽  
Compressive Loads ◽  
Hardened State

Concrete is one of the key material used in the construction industry. Concrete is used as a compressive material and it is also reinforced by rebar’s to improve its tensile strength. Due to rapid urbanization concrete use is getting huge demand and it became a major business industry. Whereas, it also utilizes natural resources to the same hasty level. Therefore, this paper utilizes waste tissues of a university as an aggregate replacer. The different test was performed in a green and hardened state. It is observed that the new concrete is good in workability and it has normal temperature but it is not good at resisting higher compressive loads. Similarly, the waste material collected after the tests and utilized in making a commercial product. This paper aims to save the environment by utilizing different types of waste in making useful items to save resources.

scholarly journals Geopolymer Concrete: A Review

2021 ◽  
Vol 1 (2) ◽  
pp. 5-8
Author(s):  
Gomasa Ramesh
Keyword(s):  
Greenhouse Gases ◽  
Construction Industry ◽  
Co2 Emissions ◽  
Cement Content ◽  
Geopolymer Concrete ◽  
Construction Sector ◽  
Conventional Concrete ◽  
Binding Material ◽  
The Cost ◽  
Cost Of Construction

Geopolymer Concrete is a new innovative type of concrete, and it is used widely in the construction industries. This type of concrete comes into place due to reduced cement content usage in the construction of structures. Already we are using cement as a binding material widely in the construction sector, but the problem is due to the cement content Co2 emissions are mainly produced and one more problem is greenhouse gases are increasing rapidly during the manufacturing of cement. Then after a lot of researchers, finally we got a geopolymer as a replacement for cement. By replacing cement content with geopolymer, we can reduce the cost of construction and reuse the structural materials. So, this type of concrete is different from standard conventional concrete. We can minimize Co2 and greenhouse gases’ problem in the atmosphere and make the structure an environmentally friendly solution. So, this type of concrete is very famous in the construction industry, and there are benefits also excellent. So, it can be used widely in construction sectors worldwide. This paper may help understand Geopolymer Concrete for everyone quickly. It gives a quick review of the Geopolymer Concrete.

Effect of Limestone Powder in Self Consolidating Lightweight Foam Concrete

2018 ◽  
Vol 280 ◽  
pp. 469-475
Author(s):  
Ahmad Ruslan Mohd Ridzuan ◽  
M.A. Mohd Fauzi ◽  
Mohd Fadzil Arshad ◽  
M.S. Harun ◽  
N. Jasmi
Keyword(s):  
Carbon Dioxide ◽  
Compressive Strength ◽  
Construction Industry ◽  
Cement Content ◽  
Basic Component ◽  
Limestone Powder ◽  
Foam Concrete ◽  
Conventional Concrete ◽  
Main Component ◽  
Lightweight Foam

Self-Consolidating Lightweight Foam Concrete (SCLFC) is known as a concrete which has no requirement towards vibration or compaction effort due to its flowability and capability in filling and achieving full compaction in reinforcement. The main component in SCLFC is cement. Cement is a basic component of concrete that used in construction industry. However, it is also the main source of Carbon Dioxide (CO2) emission. If this component of concrete is replaced with other materials, it surely can help in reducing the emission of CO2. Limestone powder can be replacement with the cement content in SCLFC. Therefore, the aim of this paper is to determine the effect of limestone powder on SCLFC in term of flowability and compressive strength. The specimens were tested for compressive strength at 3, 7, and 28 days. The result indicated the flowability of SCLFC increase with the increase of percentages of limestone powder replacement. Meanwhile, the highest compressive strength of SCLFC containing 10% limestone powder replacement give better performance than the normal SCLFC. Based on the finding, SCLFC containing 10% limestone powder replacement can be categorized same as a conventional concrete hence it can be utilized for construction purposes. Limestone powder can also acts as an alternative replacement in concrete for replacing the cement.

A state-of-the-art review on the durability of silica fume-blended concrete – a boon to the construction industry

2013 ◽  
Vol 31 (3-6) ◽  
pp. 123-134 ◽  
Author(s):  
Velu Saraswathy ◽  
Subbiah P. Karthick
Keyword(s):  
Construction Industry ◽  
Silica Fume ◽  
Blended Cement ◽  
Cementitious Materials ◽  
Supplementary Cementitious Materials ◽  
Cement Matrix ◽  
Conservation Of Resources ◽  
Chloride Permeability ◽  
Conventional Concrete ◽  
Blended Cements

AbstractThe development and use of blended cement is growing rapidly in the construction industry mainly due to the consideration of energy, environment, and conservation of resources. Blended cements are produced using any of the supplementary cementitious materials such as silica fume (SF), fly ash, and ground granulated blast furnace slag. The use of SF in concrete may improve the strength and durability of concrete by creating a denser cement matrix compared with conventional concrete, thereby enhancing the service life of concrete structures. In this article, the effect of SF in concrete is reviewed from the point of view of durability. It includes carbonation, resistivity, chloride permeability/diffusivity, sulfate resistance, and corrosion resistance.

scholarly journals Performance of pervious concrete under shear and bearing strengths

2021 ◽  
pp. 47902-47905
Keyword(s):  
Construction Industry ◽  
Low Impact Development ◽  
Pervious Concrete ◽  
Storm Water ◽  
Water Runoff ◽  
Normal Concrete ◽  
Conventional Concrete ◽  
Bearing Strength ◽  
Storm Water Runoff ◽  
Potential Applications

Pervious concrete is one of the materials with potential applications in the construction industry because it can help reduce environmental problems caused by conventional concrete, improve storm water management, and provide a low-impact development alternative. Pervious concrete has numerous advantages, including assisting with water filtering and lowering pollutants. The ability to reduce storm water runoff is the most important feature that attracts the attention of pervious concrete. The objective of the present investigation is to evaluate the properties of pervious concrete and compare them with normal concrete. On the other hand, the requirement for aggregate to produce concrete is high, while natural resources are reduced. An attempt was made to use Black Marble Stone Waste Aggregate in concrete by replacing natural aggregate at a ratio of 0, 50, and 100%.To obtain the behavior of pervious concrete, compressive, shear and bearing strength are evaluated. A total of 54 specimens were casted and tested in this experimental work to study the behavior of concrete. To assess the shear and bearing strengths, a regression model was developed.

Effect of ground granulated blast funrnace slag and fly ash on strength, permeability, and under-water abrasion of fine-grained concrete

2020 ◽  
Vol 71 (7) ◽  
pp. 775-788
Author(s):  
Quyet Truong Van ◽  
Sang Nguyen Thanh
Keyword(s):  
Fly Ash ◽  
Concrete Strength ◽  
Cementitious Materials ◽  
Supplementary Cementitious Materials ◽  
Chloride Permeability ◽  
Cement Replacement ◽  
Fine Grained ◽  
Granulated Blast Furnace Slag ◽  
Compressive Strength Test ◽  
Economic Ground

The utilisation of supplementary cementitious materials (SCMs) is widespread in the concrete industry because of the performance benefits and economic. Ground granulated blast furnace slag (GGBFS) and fly ash (FA) have been used as the SCMs in concrete for reducing the weight of cement and improving durability properties. In this study, GGBFS at different cement replacement ratios of 0%, 20%, 40% and 60% by weight were used in fine-grained concrete. The ternary binders containing GGBFS and FA at cement replacement ratio of 60% by weight have also evaluated. Flexural and compressive strength test, rapid chloride permeability test and under-water abrasion test were performed. Experimental results show that the increase in concrete strength with GGBFS contents from 20% to 40% but at a higher period of maturity (56 days and more). The chloride permeability the under-water abrasion reduced with the increasing cement replacement by GGBFS or a combination of GGBFS and FA

scholarly journals Cements with calcareous fly ash as component of low clinker eco-self compacting concrete

2019 ◽  
Vol 9 (1) ◽  
pp. 196-201
Author(s):  
Jacek Gołaszewski ◽  
Grzegorz Cygan ◽  
Tomasz Ponikiewski ◽  
Małgorzata Gołaszewska
Keyword(s):  
Fly Ash ◽  
Hardened Concrete ◽  
Self Compacting Concrete ◽  
Basic Properties ◽  
Ecological Self ◽  
Different Types ◽  
Hardened State ◽  
Main Component ◽  
New Generation ◽  
Good Workability

AbstractThe main goal of the presented research was to verify the possibility of obtaining ecological self-compacting concrete of low hardening temperature, containing different types of cements with calcareous fly ash W as main component and the influence of these cements on basic properties of fresh and hardened concrete. Cements CEM II containing calcareous fly ash W make it possible to obtain self-compacting concrete (SCC) with similar initial flowability to analogous mixtures with reference cement CEM I and CEM III/B, and slightly higher, but still acceptable, flowability loss. Properties of hardened concretes with these cements are similar in comparison to CEM I and CEM III concretes. By using cement nonstandard, new generation multi-component cement CEM “X”/A (S-W), self-compacting concrete was obtained with good workability and properties in hardened state.

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