scholarly journals Comparison of strength of sandcrete blocks produce with fine aggregate from different sources

2020 ◽  
Vol 39 (2) ◽  
pp. 332-337
Author(s):  
A. O. Alejo
Keyword(s):  
Compressive Strength ◽  
Local Government ◽  
Research Work ◽  
Sieve Analysis ◽  
Fine Aggregate ◽  
Free Standing ◽  
Natural Sand ◽  
Mix Proportion ◽  
Production Practice ◽  
Compressive Strength Test

Sandcrete blocks comprise of water, natural sand cement. Sandcrete blocks are the building units used in the construction of wall and partitions. Diverse sizes of sandcrete blocks are used to construct free standing walls and building structure with load and non – load bearing units. This research work investigate and compared strength of sandcrete blocks produced with fine aggregate from different source in Owo local government area. The targeted areas within Owo local government are Emure, Ipele and Shagari. Sieve analysis was conducted on the samples and the result revealed that all the samples are good for sandcrete block production. Thirty six sandcrete cubes samples were mould. The mix proportion 1:6 was used. Batching by volume was adopted. Curing was done by full immersion of sandcrete and compressive strength test was carried out on each specimen at 7, 14. 21 and 28 days respectively. The percentage of fine aggregate used in this research was 100% for all samples. The results revealed that sandcrete blocks produced with fine aggregate from Ipele, Shagari and Emure gives compressive strength of 4,15N/MM2, 3.56N/MM2 and 5.48N/MM2 at 28 days respectively. Based on the result of this research work, it is recommended that Emure fine aggregate (sand) is considered as most suitable out of the samples tested for sandcrete blocks production. Keywords: Sand, Sandcrete blocks, Compressive strength, Curing, Production practice.

scholarly journals Effect of Mound Soil on Concrete Produced with River Sand

2014 ◽  
Vol 2 (1) ◽  
pp. 75-82
Author(s):  
Elivs M. Mbadike ◽  
N.N Osadebe
Keyword(s):  
Compressive Strength ◽  
Research Work ◽  
Strength Test ◽  
Control Test ◽  
River Sand ◽  
Cement Ratio ◽  
Water Cement Ratio ◽  
Compressive Strength Test ◽  
Average Compressive Strength

In this research work, the effect of mound soil on concrete produced with river sand was investigated. A mixed proportion of 1.1.8:3.7 with water cement ratio of 0.47 were used. The percentage replacement of river sand with mound soil is 0%, 5%, 10%, 20%, 30% and 40%. Concrete cubes of 150mm x 150mm x150mm of river sand/mound soil were cast and cured at 3, 7, 28, 60 and 90 days respectively. At the end of each hydration period, the three cubes for each hydration period were crushed and their average compressive strength recorded. A total of ninety (90) concrete cubes were cast. The result of the compressive strength test for 5- 40% replacement of river sand with mound soil ranges from 24.00 -42.58N/mm2 a against 23.29-36.08N/mm2 for the control test (0% replacement).The workability of concrete produced with 5- 40% replacement of river sand with mound soil ranges from 47- 62mm as against 70mm for the control test.

The Effect of Different Curing Conditions on Compressive Strength of Concrete

2017 ◽  
Vol 60 (3) ◽  
pp. 147-153
Author(s):  
Muhammad Arslan ◽  
Muhammad Asif Saleem ◽  
Maria Yaqub ◽  
Muhammad Saleem Khan
Keyword(s):  
Compressive Strength ◽  
Research Work ◽  
Concrete Structures ◽  
Strength Test ◽  
The Other ◽  
Cylindrical Shape ◽  
Curing Conditions ◽  
Compressive Strength Test ◽  
Different Types ◽  
Compressive Strength Of Concrete

The focus of this research work was to analyse the effect of different types of curing oncompressive strength of concrete structures. For this purpose, 54 test specimens of cylindrical shape wereprepared. These specimens were cured with different methods and were tested on different age days toanalyse the effect of curing on compressive strength. Test specimens cured with conventional water curingmethod gives the highest results as compared to the other adopted methods.

scholarly journals Study on Compressive Strength of Quarry Dust as Fine Aggregate in Concrete

2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
K. Shyam Prakash ◽  
Ch. Hanumantha Rao
Keyword(s):  
Compressive Strength ◽  
Environmental Pollution ◽  
Low Cost ◽  
Experimental Investigations ◽  
Fine Aggregate ◽  
Normal Concrete ◽  
Natural Sand ◽  
Alternative Material ◽  
Quarry Dust

The concept of replacement of natural fine aggregate by quarry dust which is highlighted in the study could boost the consumption of quarry dust generated from quarries. By replacement of quarry dust, the requirement of land fill area can be reduced and can also solve the problem of natural sand scarcity. The availability of sand at low cost as a fine aggregate in concrete is not suitable and that is the reason to search for an alternative material. Quarry dust satisfies the reason behind the alternative material as a substitute for sand at very low cost. It even causes burden to dump the crusher dust at one place which causes environmental pollution. From the results of experimental investigations conducted, it is concluded that the quarry dust can be used as a replacement for fine aggregate. It is found that 40% replacement of fine aggregate by quarry dust gives maximum result in strength than normal concrete and then decreases from 50%. The compressive strength is quantified for varying percentage and grades of concrete by replacement of sand with quarry dust.

scholarly journals Use of Recycled Tyre Rubber in Non-structural Concrete

2018 ◽  
Vol 203 ◽  
pp. 06001
Author(s):  
Muhammad Bilal Waris ◽  
Hussain Najwani ◽  
Khalifa Al-Jabri ◽  
Abdullah Al-Saidy
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Coarse Aggregate ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Structural Concrete ◽  
Cement Ratio ◽  
Mix Proportion ◽  
Water To Cement Ratio ◽  
Concrete Blocks

To manage tyre waste and conserve natural aggregate resource, this research investigates the use of waste tyre rubber as partial replacement of fine aggregates in non-structural concrete. The research used Taguchi method to study the influence of mix proportion, water-to-cement ratio and tyre rubber replacement percentage on concrete. Nine mixes were prepared with mix proportion of 1:2:4, 1:5:4 and 1:2.5:3; water-to-cement ratio of 0.25, 0.35 and 0.40 and rubber to fine aggregate replacement of 20%, 30% and 40%. Compressive strength and water absorption tests were carried out on 100 mm cubes. Compressive strength was directly proportional to the amount of coarse aggregate in the mix. Water-to-cement ratio increased the strength within the range used in the study. Strength was found to be more sensitive to the overall rubber content than the replacement ratio. Seven out of the nine mixes satisfied the minimum strength requirement for concrete blocks set by ASTM. Water absorption and density for all mixes satisfied the limits applicable for concrete blocks. The study indicates that mix proportions with fine to coarse aggregate ratio of less than 1.0 and w/c ratio around 0.40 can be used with tyre rubber replacements of up to 30 % to satisfy requirements for non-structural concrete.

Mechanical Properties of Double Layer Rubberized Concrete Paving Blocks

2014 ◽  
Vol 911 ◽  
pp. 463-467 ◽  
Author(s):  
Euniza Jusli ◽  
Hasanan M. Nor ◽  
Putra Jaya Ramadhansyah ◽  
Haron Zaiton
Keyword(s):  
Compressive Strength ◽  
Double Layer ◽  
Fine Aggregate ◽  
Rubberized Concrete ◽  
Rubber Content ◽  
Waste Rubber ◽  
Load Carrying ◽  
Compressive Strength Test ◽  
Solid Load ◽  
Different Levels

This paper sought to evaluate the influences of different levels of waste rubber tyre (rubber granules) as an aggregate replacement in the production of double layer concrete paving blocks (CPBs). Waste rubber tyres were used as an aggregate replacement at the levels of 0%, 10%, 20%, 30%, and 40%. The characteristics of the double layer rubberized CPB were examined via a series of tests. According to the results, the density, porosity, and compressive strength of the double layer rubberized CPB is highly influenced by the percentage of rubber content. The compressive strength test has proven that by using rubber granules as an aggregate, the compressive strength is able to be manipulated. As the percentage of rubber granules increase, the compressive strength will decrease as the amount of solid, load-carrying material reduces. Compressive strength was at its peak when the rubber content was at 10%. 1-4 mm rubber granules were used as a replacement of fine aggregate and 5-8 mm rubber granules as coarse aggregate; both at the level of 40%. As a result, a double layer rubberized CPB with 28-days compressive strength of maximum 28 MPa is produced.

scholarly journals THE EFFECT OF ADDING CEMENT WASTE ON THE QUALITY OF CONCRETE COMPRESSIVE

Jurnal CIVILA ◽  
2021 ◽  
Vol 6 (2) ◽  
pp. 213
Author(s):  
Asrul Majid ◽  
Hammam Rofiqi Agustapraja
Keyword(s):  
Compressive Strength ◽  
Strength Test ◽  
Fine Aggregate ◽  
Infrastructure Development ◽  
Test Results ◽  
Compressive Strength Test ◽  
Compressive Strength Of Concrete ◽  
Concrete Materials ◽  
Test Objects

Infrastructure development is one of the important aspects of the progress of a country where most of the constituents of infrastructure are concrete. The most important constituent of concrete is cement because its function is to bind other concrete materials so that it can form a hard mass. The large number of developments using cement as a building material will leave quite a lot of cement bags.In this study, the authors conducted research on the effect of adding cement waste to the compressive strength of concrete. This study used an experimental method with a total of 24 test objects. The test object is in the form of a concrete cylinder with a diameter of 15 cm and a height of 30 cm and uses variations in the composition of the addition of cement waste cement as a substitute for fine aggregate, namely 0%, 2%, 4% and 6%. K200). The compressive strength test was carried out at the age of 7 days and 28 days.The test results show that the use of waste as a partial substitute for fine aggregate results in a decrease in the compressive strength of each mixture. at the age of 7 days the variation of 2% is 16.84 MPa, 4% is 11.32 MPa and for a mixture of 6% is 6.68 MPa. Meanwhile, the compressive strength test value of 28 days old concrete in each mixture decreased by ± 6 MPa. So the conclusion is cement cement waste cannot be used as a substitute for fine aggregate in fc 16.6 (K200) quality concrete because the value is lower than the specified minimum of 16.6 MPa.

scholarly journals Studi Perancangan Campuran Beton Menggunakan Abu Batu Sebagai Agregat Halus. (Hal. 108-117)

2019 ◽  
Vol 5 (3) ◽  
pp. 108
Author(s):  
Muhammad Malik Ibrahim ◽  
Priyanto Saelan
Keyword(s):  
Compressive Strength ◽  
Concrete Mixture ◽  
Fine Aggregate ◽  
Natural Sand ◽  
Additional Water ◽  
Compressive Strength Of Concrete ◽  
Concrete Materials ◽  
The Relationship ◽  
Water Ratio ◽  
Research Show

ABSTRAKSalah satu limbah yang dapat digunakan sebagai pengganti bahan pembuat beton adalah abu batu. Abu batu merupakan limbah dari proses pemecahan bongkahan batu. Ditinjau dari ukuran butirannya maka abu batu merupakan agregat halus. Abu batu memiliki penyerapan air yang lebih tinggi daripada pasir alami, maka dari itu untuk mendapatkan kelecakan campuran beton yang sama dengan kelecakan campuran beton menggunakan pasir alami, penggunaan abu batu sebagai agregat halus dalam campuran beton perlu tambahan air. Namun hal ini akan menyebabkan faktor air-semen bertambah. Sehingga hasil kuat tekan akan menurun. Hal ini sesuai dengan hubungan antara kuat tekan beton dengan faktor air-semen. Perekayasaan yang dilakukan adalah dengan menaikkan faktor granular (G) dan menaikkan kuat tekan rencana berdasarlan teori Dreux. Abu batu pada penelitian ini digunakan sebagai substitusi pasir alami dengan proporsi 0%, 20%, 40%, 60%, 80%, dan 100%. Hasil penelititan ini memperlihatkan penggunaan abu batu sebagai agregat halus lebih dari 40% akan sangat drastis menurunkan kuat tekan beton.Kata kunci: perekayasaan, substitusi, campuran beton, abu batu, agregat halus ABSTRACTOne of the wastes that can be used as a substitute for concrete materials is stone ash. Stone ash is a waste from the process of stone crusher. Consider from the size of the grain, stone ash as fine aggregate. Stone ash has a higher water absorption than natural sand, therefore to get the concrete workability that is the same as the concrete workability using natural sand, the use of stone ash as fine aggregate in the concrete mixture needs additional water. But this will cause the cement-water ratio to increase. So that the compressive strength will decrease. This is following the relationship between the compressive strength of concrete and the cement-water ratio. Engineering is done by increasing the granular factor (G) and increasing the compressive strength of the plan based on Dreux theory. Stone ash in this study was used as a substitute for natural sand with a proportion of 0%, 20%, 40%, 60%, 80%, and 100%. The results of this research show that the use of stone ash as fine aggregate of more than 40% will greatly reduce the compressive strength of the concrete.Keywords: engineering, substitute, concrete mixture, stone ash, fine aggregate

scholarly journals PENGARUH CAMPURAN AIR LIMBAH (AIR SELOKAN) TERHADAP KUAT TEKAN BETON f’c 14.5 Mpa (K-175)

UKaRsT ◽  
2018 ◽  
Vol 2 (2) ◽  
pp. 7
Author(s):  
Rasio Hepiyanto ◽  
Dwi Kartikasari
Keyword(s):  
Waste Water ◽  
Compressive Strength ◽  
Fine Aggregate ◽  
Clean Water ◽  
Concrete Compressive Strength ◽  
Housing Projects ◽  
Technological Advances ◽  
Compressive Strength Test ◽  
Worker Housing ◽  
Test Result

Improving technological advances, the use of concrete as a building is very popular in Indonesia. Because it can utilize locally available materias such as crushed stone, pebble, sand, cement and water at a relatively cheap price. In everyday use is often found in construction worker housing projects that use waste water (Water Sewer) for the construction of concrete. This certainly requires a closer examination toward the quality of concrete produced. The method of data analysis begins with a cement investigation, coarse and fine aggregate. Concrete mixing uses clean water (PDAM) as reference and waste water (Water Sewage) from Unisla rusunawa building. From result of analysis which have been done, concrete compressive strength test result at age 7, 14 and 28 days with mixing of clean water equal to 13,68 Mpa, 18,51 Mpa, 21,04 Mpa, while concrete test result at Age 7, 14 And 28 days with Water Sewage mixing of 9.99 MPa, 13.35 MPa and 15.36 MPa.Keywords : Waste Water, Concrete, Compressive Strength

scholarly journals Strength Characteristics of M40 Grade Concrete using Waste PET as Replacement for Sand

2021 ◽  
Vol 18 (3) ◽  
pp. 209-218
Author(s):  
S.O.A. Olawale ◽  
M.A. Kareem ◽  
O.Y. Ojo ◽  
A.U. Adebanjo ◽  
M.O. Thanni
Keyword(s):  
Compressive Strength ◽  
Target Strength ◽  
River Sand ◽  
Split Tensile Strength ◽  
Natural Sand ◽  
Cement Ratio ◽  
Mix Proportion ◽  
Global Trend ◽  
Concrete Production ◽  
Free Environment

The wide variety of industrial and domestic applications of plastic products has fuelled a global trend in their use. The vast amount of plastic items that are discarded after use, on the other hand, pollutes the environment. In light of this, the current study  investigated the use of Polyethylene Terephthalate (PET) as substitute for natural sand in concrete production. Locally sourced river sand was replaced with industrially ground waste PET in proportions of 4 to 20% at a step of 4% by the weight of natural sand whereas other concrete constituents (cement, granite, water-cement ratio and superplasticizer) were kept constant. A Grade M40 concrete with a mix proportion of 1:1:2:0.35 (cement: sand: granite: water-to-cement ratio) was used for all concrete mixes.  Concrete without PET represents the control. Fresh (Slump) and hardened (compressive, split tensile and flexural) properties of the produced concrete were assessed using standard testing methods. The results showed that the slump of concrete decreased by 1.8% and 12.5% with an increase in PET content from 0 to 20%. The 28-day compressive strength of concrete containing PET was lower than the control. However, concrete with 4% PET compared considerably well with control with the compressive strength value exceeding the target strength of 40 N/mm2 while concretes containing PET beyond 4% had compressive strength below the target strength. The split tensile strength of concrete containing 4% PET was higher than that of the control but exhibited lower flexural strength than the control at the age of 28 days. It was concluded that the reuse of PET as a substitute for natural sand as an alternative waste disposal solution for eco-friendly concrete development and attainment of a pollution-free environment is viable.

scholarly journals Research on Alternative to Replace Natural Sand in Cement Stabilized Rammed Earth Blocks

2019 ◽  
Vol 8 (2S3) ◽  
pp. 504-507
Keyword(s):  
Compressive Strength ◽  
Strength Test ◽  
Rammed Earth ◽  
Natural Sand ◽  
Stabilizing Agent ◽  
Manufactured Sand ◽  
Compressive Strength Test ◽  
Alternative Material ◽  
Cheap Alternative ◽  
Earth Blocks

Natural Sand, which is being used extensively for all types of construction activities, is getting scarce now and many researchers have been put to task of testing other materials like manufactured sand for their usability in civil works. Present study aims at using the locally available soil for producing earth blocks. The materials like Auto aerated clay waste, manufactured sand are used in different proportions to see the possibility as a replacement for natural sand. Both the materials were used in proportion range of 35-65% along with 8% cement as a stabilizing agent. The cube compressive strength test was performed on soaked samples after 7 days and 28 days. It has been concluded from the result that the manufactured sand is cheap alternative material to replace natural sand

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