Preliminary Study of Compressive Strength of Concrete Incorporated with Waste Paper Fibres

2018 ◽  
Vol 279 ◽  
pp. 255-260
Author(s):  
Mohd Syahrul Hisyam Mohd Sani ◽  
Fadhluhartini Muftah ◽  
Ahmad Rasidi Osman
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Waste Paper ◽  
Critical Problem ◽  
Initial Information ◽  
Fibre Concrete ◽  
High Production ◽  
Preliminary Study ◽  
Compressive Strength Of Concrete ◽  
High Production Cost

Concrete incorporated with waste paper fibres (WPF) was studied to get the initial information of compressive strength before doing further action to solve a critical problem. Problems such as environmental problem, high production cost and concrete distress were solved to minimise the critical problem. The main objective of the preliminary study is to investigate the compressive strength of concrete with WPF at an appropriate percentage. Some review assessments from previous studies, either on industrial fibres or natural fibres with critics, were done to obtain information and upgrade knowledge. The compressive strength and water absorption result were reported for concrete without and with WPF in proportion of 0.2%, 0.4%, 0.6%, 0.8%, 1.0% and 1.5%. From the observation and testing, the compressive strength of concrete with WPF was decreased with increase in fibre percentage in the concrete. Besides, the water absorption, which always influence the compressive strength, was increased when the percentage of fibres increased; thus, some recommendations and adjustments are proposed for the next feat to produce waste paper fibre concrete with better compressive strength and greater water absorption, and thus solve the environmental issues and enable waste material to support sustainable materials in construction and building.

scholarly journals Partial Replacement of Cement with Waste Paper Sludge Ash

2021 ◽  
Vol 9 (11) ◽  
pp. 1975-1983
Author(s):  
Shahid Bashir
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Water Absorption ◽  
Cement Industry ◽  
Waste Paper ◽  
Partial Replacement ◽  
Dry Density ◽  
Paper Sludge ◽  
Paper Sludge Ash ◽  
Sludge Ash

Abstract: Cement production is one of the sources that emit carbon dioxide, in addition to deforestation and combustion of fossil fuels also leads to ill effects on environment. The global cement industry accounts for 7% of earth’s greenhouse gas emission. To enhance the environmental effects associated with cement manufacturing and to constantly deplore natural resources, we need to develop other binders to make the concrete industry sustainable. This work offers the option to use waste paper sludge ash as a partial replacement of cement for new concrete. In this study cement in partially replaced as 5%, 10%, 15% and 20% by waste paper sludge ash in concrete for M25 mix and tested for compressive strength, tensile strength, water absorption and dry density up to the age of 28days and compared it with conventional concrete, based on the results obtained, it is found that waste paper ash may be used as a cement replacement up to 5% by weight and the particle size is less the 90µm to prevent reduction in workability. Keywords: slump test, Compressive strength, split tensile strength, water absorption test, Waste Paper Sludge Ash Concrete, Workability.

scholarly journals Influence of Parent Concrete Properties on Compressive Strength and Chloride Diffusion Coefficient of Concrete with Strengthened Recycled Aggregates

Materials ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 4631 ◽  
Author(s):  
Jingwei Ying ◽  
Zewen Han ◽  
Luming Shen ◽  
Wengui Li
Keyword(s):  
Compressive Strength ◽  
Diffusion Coefficient ◽  
Water Absorption ◽  
Recycled Aggregates ◽  
Chloride Diffusion ◽  
Chloride Diffusion Coefficient ◽  
Wide Range ◽  
Different Types ◽  
Compressive Strength Of Concrete ◽  
Silica Slurry

Parent concrete coming from a wide range of sources can result in considerable differences in the properties of recycled coarse aggregate (RCA). In this study, the RCAs were obtained by crushing the parent concrete with water-to-cement ratios (W/Cparent) of 0.4, 0.5 and 0.6, respectively, and were strengthened by carbonation and nano-silica slurry wrapping methods. It was found that when W/Cparen was 0.3, 0.4 and 0.5, respectively, compared with the mortar in the untreated RCA, the capillary porosity of the mortar in the carbonated RCA decreased by 19%, 16% and 30%, respectively; the compressive strength of concrete containing the carbonated RCA increased by 13%, 11% and 13%, respectively; the chloride diffusion coefficient of RAC (DRAC) containing the nano-SiO2 slurry-treated RCA decreased by 17%, 16% and 11%; and that of RAC containing the carbonated RCA decreased by 21%, 25% and 26%, respectively. Regardless of being strengthened or not, both DRAC and porosity of old mortar in RCAs increased with increasing W/Cparent. For different types of RCAs, DRAC increased obviously with increasing water absorption of RCA. Finally, a theoretical model of DRAC considering the water absorption of RCA was established and verified by experiments, which can be used to predict the DRAC under the influence of different factors, especially the water absorption of RCA.

Study on Glass Fibre Concrete Roof Tiles

2021 ◽  
Vol 9 (VII) ◽  
pp. 2864-2869
Author(s):  
Mrs. M. Amala
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Glass Fibre ◽  
Minimum Cost ◽  
Normal Concrete ◽  
Fibre Glass ◽  
Flexure Strength ◽  
Roof Tile ◽  
Fibre Concrete ◽  
Short Fibres

The main objective of the fibre glass in concrete roof tile is to obtain good strength, heat resistant, & water seepage resistant roof tile. To ensure that the roof tile produced plays a role development with minimum cost, and high flexure strength. To draw an analogy between the normal concrete roof tile with glass fibre concrete roof tile. The sizes of short fibres used were 25mm and the glass fibres were alkali resistant. The effect of these short fibres on wet transverse strength, compressive strength and water absorption was carried out.

scholarly journals LIGHTWEIGHT CONCRETE MAKING ANALYSIS USING MIXED CELLULOSE

2019 ◽  
Vol 2 (2) ◽  
pp. 85-91
Author(s):  
Nanang Budi Setyawan ◽  
Fredy Kurniawan
Keyword(s):  
Compressive Strength ◽  
Experimental Method ◽  
Lightweight Concrete ◽  
Mix Design ◽  
Waste Paper ◽  
Test Results ◽  
Concrete Mix Design ◽  
Concrete Mix ◽  
Recycle Paper ◽  
Compressive Strength Of Concrete

Development era of globalization has resulted in increasing number of second-hand goods / waste that its existence can be a problem for life in the future. Many things are done in order to recycle paper cement in order to overcome this problem the existence of waste. One way is to use waste paper to be a part of the building. The purpose of this study, to determine the compressive strength and optimum density. Laboratory experimental method uses a variation of 10%, 20%, 30% and testing conducted in the form of compressive strength and density. From the test results obtained by the result of decrease in the compressive strength and density. In addition cellulose concrete mix design with variations determined that 10%, 20%, 30% resulted in a decrease in the compressive strength of concrete,

scholarly journals THE INFLUENCE OF RIVER AND VOLCANIC SAND AS COATINGS ON POLYPROPYLENE WASTE COARSE AGGREGATE TOWARDS CONCRETE COMPRESSIVE STRENGTH

2020 ◽  
Vol 82 (4) ◽  
Author(s):  
Gandjar Pamudji ◽  
Madsuri Satim ◽  
Mochamad Chalid ◽  
Heru Purnomo
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Coarse Aggregate ◽  
Experimental Tests ◽  
Concrete Compressive Strength ◽  
Replacement Ratio ◽  
River Sand ◽  
Aggregate Concrete ◽  
Different Types ◽  
Compressive Strength Of Concrete

One of the most important factors used to determine the compressive strength of concrete is its aggregate and matrix adhesion. This study examines the surface properties of polypropylene (PP) waste coarse aggregate (PWCA) to determine the influence of sand. The PWCA was made from the PP waste and different types of coating such as PWCA-R (river sand) and PWCA-V (volcanic sand), with experimental tests conducted on the physical properties of sand and PWCA, while the compressive strength, FESEM and density of polypropylene waste coarse aggregate concrete (PWCAC). Concrete specimens were prepared by replacing natural coarse aggregate with PWCA in percentages of 0%, 25%, 50%, 75%, and 100%, varying the water-cement ratio by 0.3 and 0.42 and using polypropylene (PP) waste coarse aggregate (PWCA-R and PWCA-V) as the coating material. The results showed that fineness modulus (F.M) and water absorption of the river sand was higher compared to volcanic sand. The PWCA-V had higher density and specific gravity compared to PWCA-R. On the other hand, water absorption of the PWCA-V was lower than PWCA-R. The PWCA concrete had density which varies from 1740 kg/m3 to 2074 kg/m3. For both, the PWCA concrete compressive strength at 28 days with a 100% replacement ratio was reduced by 43% to 55% compared to the natural coarse aggregate (NCA) concrete with 0.3 and 0.42 water-cement ratios. Also, the structural efficiency of PWCAC decreased with an increase in replacement ratio. River sand adhered to the PWCA surface resulted in a better compressive strength value compared to the volcanic sand. 

scholarly journals Correlations between water absorption, electrical resistivity and compressive strength of concrete with different contents of pozzolan

2019 ◽  
Vol 9 (2) ◽  
pp. 152-166 ◽  
Author(s):  
Ronaldo Alves de Medeiros-Junior ◽  
Guilherme da Silva Munhoz ◽  
Marcelo Henrique Farias de Medeiros
Keyword(s):  
Compressive Strength ◽  
Electrical Resistivity ◽  
Water Absorption ◽  
Lower Content ◽  
Cement Ratio ◽  
Water Cement Ratio ◽  
Strength Concrete ◽  
Concrete Mixtures ◽  
Concrete Properties ◽  
Compressive Strength Of Concrete

This research confronts the following concrete properties: water absorptions (by immersion and capillarity), electrical resistivity and compressive strength. Concrete mixtures with two types of cement were tested. Results showed that concretes with higher content of pozzolan had higher resistivity and greater absorption by capillarity, for water/cement ratios lower than 0,60. This behavior is attributed to reduced pore diameters and microstructure densification. However, for water/cement ratio of 0,60, concrete with lower content of pozzolan presented higher absorption by capillarity. It was observed that the compressive strength and the electrical resistivity behaved inversely proportional to the water/cement ratio, and the absorption by immersion and capillarity are directly proportional to the water/cement ratio. Correlations with high determination coefficients were found between tests.

Potential Use of Waste Paper/Sludge as a Ceiling Board Material

2007 ◽  
Vol 18-19 ◽  
pp. 49-53 ◽  
Author(s):  
O.P. Folorunso ◽  
B.U. Anyata
Keyword(s):  
Thermal Conductivity ◽  
Compressive Strength ◽  
Flexural Strength ◽  
Water Absorption ◽  
Drying Shrinkage ◽  
Waste Paper ◽  
Paper Sludge ◽  
Board Material ◽  
Potential Use

A material was made from cement/waste paper/sludge mixture and tests were carried out on it to ascertain its suitability as a ceiling board material. The tests included water absorption, drying shrinkage, flexural strength, thermal conductivity, and compressive strength. The results showed that the material possesses good properties as a ceiling board material.

scholarly journals A Reciprocal Research on Compressive Strength of Conventional Concrete and Carbon Fibre Concrete Exposed to High Temperature

2019 ◽  
Vol 8 (12) ◽  
pp. 5767-5772
Keyword(s):  
Compressive Strength ◽  
High Temperature ◽  
Carbon Fiber ◽  
Carbon Fibers ◽  
Concrete Structure ◽  
Conventional Concrete ◽  
Fibre Concrete ◽  
Overall Performance ◽  
Compressive Strength Of Concrete ◽  
Concrete Elements

An look up has been function to evaluated the have an impact on of evaluated temperature on the compressive strength of grade concrete M25, the goal of the discover out about used to be once to actuate and observe the big difference in compressive strength containing no fiber and concrete with fiber as properly as have an impact on of temperature on compressive strength of concrete. 72 concrete cubes of 150mm measurement have been cast. The carbon fibers used in the learn about are 6mm long chopped carbon fibers& dosage of 0.3%, 0.6%, and 0.9% by the weight of concrete. Concrete elements exposed to fire, undergo bodily changes or spalling which leads to expose metal reinforcement .This motives misery in concrete structure .The overall performance of the concrete can be lengthen with the addition of carbon fiber. Undergo bodily changes or spalling which leads to expose metal reinforcement .This motives misery in concrete structure .The overall performance of the concrete can be lengthen with the addition of carbon fiber. It can be noticed that carbon fiber reinforcement exhibits more compressive strength than the conventional concrete exposed to high temperature.

scholarly journals KUALITAS BATA BETON BERLUBANG DENGAN BAHAN LIMBAH TAILING PENAMBANGAN EMAS UPBE PONGKOR

2019 ◽  
Vol 18 (1) ◽  
Author(s):  
Amalia Amalia ◽  
Agus Murdiyoto
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Bulk Density ◽  
Gold Mining ◽  
Partition Wall ◽  
Weight Content ◽  
Concrete Blocks ◽  
Hollow Brick ◽  
Compressive Strength Of Concrete ◽  
Class Iv

ABSTRACTThis study aims to investigate the potential of gold mining tailings UPBE Pongkor as hollow concrete brick making material and investigate its properties. The study was conducted by making hollow concrete brick composition 1 PC: 8 aggregate, consisting of 4 variations of tailings as aggregate substitution, ie 0%, 25%, 50%, and 75% of the aggregate weight. The results showed that (1) the use of tailings as aggregate replacement in concrete hollow brick can reduce the compressive strength of concrete blocks, (2) can be used as a substitute Tailings aggregate up to 75%, wherein the composition produces hollow concrete bricks that still meets ISO standards for class IV concrete brick that can be used as non-structural partition wall, (3) the higher levels replace sand tailings, water absorption in hollow concrete brick is also higher, (4) weight content of concrete hollow brick using more and more tailings, bulk density is decreased.Key words : Hollow concrete brick, compressive strength, tailing of gold mining

Recycling of Crushed Clay Brick as Aggregate in Concrete

2011 ◽  
Vol 94-96 ◽  
pp. 1087-1090 ◽  
Author(s):  
Hamed Nabizadeh Rafsanjani ◽  
Morteza Chehreghani ◽  
Mohsen Nourbakhsh
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Environmental Problem ◽  
Construction Material ◽  
Construction Project ◽  
Unit Weight ◽  
Clay Brick ◽  
New Material ◽  
Compressive Strength Of Concrete

Clay brick generated from construction project sites is usually delivered to landfills for disposal and thus they can damage environment. The use of crushed clay brick can solve the environmental problem. This paper presents the possible use of crushed clay brick as a construction material. This new material gathered from some construction project sites in Iran is used as 100% aggregate in the production of concrete. The results indicated that the crushed clay brick reduced the unit weight and compressive strength of concrete, and increase the water absorption value. This new concrete can be used in non-structural products.

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