Mechanical Properties of Concrete Block Reinforced with Recycle HDPE and Coal Bottom Ash

2019 ◽  
Vol 961 ◽  
pp. 51-56 ◽  
Author(s):  
Agus Dwi Anggono ◽  
Zaennal Muttaqiem ◽  
Agung Setyo Darmawan ◽  
Tri Widodo Besar Riyadi ◽  
Agus Yulianto ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Volume Fraction ◽  
Bottom Ash ◽  
Concrete Block ◽  
National Standard ◽  
Coal Bottom Ash ◽  
Plastic Metal ◽  
Water Absorption Test ◽  
Inorganic Waste

Garbage is a serious problem if it is not managed properly, both organic and non-organic. Inorganic waste, for example, plastic, metal, glass, and charcoal from coal combustion are difficult to decompose in the soil. HDPE (high-density polyethylene) plastic is one type of inorganic waste that is difficult to decompose, but this plastic can be recycled. The objective of the study is to develop light cement blocks by using the waste of HDPE, coal bottom ash and cement. The research guide was referred to SNI (Indonesian National Standard). The SNI-03-6825-2002 is for testing of the compressive strength and SNI 03-0349-1989 for the testing of the water absorption. The size of the specimen was 5 x 5 x 5 cm. In this study, the compositions of HDPE: coal bottom ash were varied by 70%: 0%, 60%: 10%, 50%: 20%, and 40%: 30%. The Holcim cement was 30% of the volume fraction. Testing was conducted after the specimens stay in 7 and 28 days. For the 7 days old of specimens, the highest compressive strength has resulted from 50%:20% composition with the value of 5.88 N/mm2. For the 28 days old specimens, the highest compressive strength was 8.34 N/mm2. The lowest water absorption test was delivered by the more coal bottom ash in the composition of 40%:30%. It was 16.971%. The more coal bottom ash, the less water absorption. The mean of specimens density was 1.076 gr/cm3. The result of the research shows that recycles HDPE and coal bottom ash as concrete block meet the required strength.

Kuat Tekan dan Penyerapan Batako Menggunakan Serat Pelepah Kelapa

2021 ◽  
Vol 4 (2) ◽  
pp. 86
Author(s):  
Darul Niham Wahono ◽  
Zaenuri Arifin ◽  
Yosef Cahyo Setianto Poernomo ◽  
Zendy Bima Mahardana ◽  
Ashabul Yamin
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Building Material ◽  
National Standard ◽  
Absorption Test ◽  
Coconut Fiber ◽  
Minimum Value ◽  
Water Absorption Test ◽  
Test Objects

Brick is a building material that has a function as a room sealer. Its larger size, when compared to red brick, makes bricks more in demand in the market. Improving the quality of bricks needs to be done to meet the needs of the building. The use of added materials becomes one of the things that can be considered to improve the nature and quality of bricks. This research aims to find out the strong press and absorption of bricks with the use of coconut pellet fiber. The research was conducted experimentally with the manufacture of test objects in the laboratory. The test object used is in the form of a beam of 30x15x10 cm. The percentage variation of coconut fiber is 5%, 10%, and 15% of the weight mass in bricks. The tests carried out include a strong compressive and water absorption test with reference to the Indonesian National Standard (SNI). The results of water absorption tests obtained the optimum value in bricks with a mixture of 5% fiber which is 6% of the mass of the weight of the brick, while the minimum value is in the brick, 15% fiber, which is 10%. While the compressive strength results get the optimum value on the 5% fiber mix variation, which is 20.1 kg/cm², and the minimum value on the variation of 15% fiber is 8.8 kg/cm². From these results showed that bricks with coconut pellet fiber have not been able to improve the quality of bricks.

scholarly journals Comparative Strength and Cost of Rice Husk Concrete Block

2019 ◽  
Vol 280 ◽  
pp. 04002
Author(s):  
Setya Winarno
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Rice Husk ◽  
Concrete Block ◽  
Strength Analysis ◽  
Normal Concrete ◽  
Comparative Cost ◽  
Concrete Production ◽  
Sustainable Materials ◽  
The Cost

This research presents a comparative cost and strength analysis of rice husk concrete block which is aimed at reducing the cost of concrete production and emphasizing environmentally and friendly sustainable materials. Concrete block materials consist of cement, filler, and rice husk. Tests were performed to compare the strength and cost of seven cement rice husk weight ratios designated ranging from 0.67 to 2.00 with constant water cement ration of 0.4. Samples have been tested for 28-day strength. The analysis of the results has showed that the higher proportions of rice husk correspond to decreased strength dan cost polynomially. At 134% proportion of rice husk, it is optimum value for rice husk concrete block. In this point, the compressive strength satisfies the standard. Also, water absorption of 16,04% justifies the maximum standard. Overall, the cost of 134% RH concrete is Rp 511,809 per m3 which is 42.5% cheaper than normal concrete block.

Reuse of water treatment plant sludge and dam sediment in brick-making

2001 ◽  
Vol 44 (10) ◽  
pp. 273-277 ◽  
Author(s):  
C. Huang ◽  
J.R. Pan ◽  
K.-D. Sun ◽  
C.-T. Liaw
Keyword(s):  
Compressive Strength ◽  
Water Treatment ◽  
Water Absorption ◽  
Satisfactory Result ◽  
Raw Materials ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
National Standard ◽  
Sintering Process ◽  
Water Treatment Plant Sludge

In this study, an attempt was made to use water treatment plant (WTP) sludge and dam sediment as raw materials for brick-making through the sintering process. The sinter of dam sediment fired at 1,050°C had a less than 15% ratio water absorption, and its compressive strength and bulk density met the Chinese National Standard (CNS) for first level brick. The WTP sludge sinter made under the same operating condition exhibited higher water absorption, larger shrinkage, but poorer compressive strength. When fired at 1,100°C, the shrinkage of the WTP sludge sinter was as high as 45%, although its compressive strength and water absorption of WTP sludge brick still met the standard for the first level brick. To reuse WTP sludge in an economical way, mixtures of various proportions of WTP sludge to dam sediment are used as raw materials. A satisfactory result was achieved when the ratio of the WTP sludge was less than 20% of the mixture. Results of tests indicated that the sinter of dam sediments which are fired at a temperature of 1000~1100°C has reached the requirement for tile brick.

scholarly journals PEMANFAATAN LIMBAH TEMPURUNG KELAPA SEBAGAI CAMPURAN PAVING BLOCK (Ditinjau dari Kuat Tekan dan Resapan Air)

UKaRsT ◽  
2020 ◽  
Vol 4 (1) ◽  
pp. 1
Author(s):  
Ilham Adji Sucahyo ◽  
Hammam Rofiqi Agustapraja ◽  
Bobby Damara
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Quality Standards ◽  
Water Infiltration ◽  
Mix Design ◽  
Coconut Shell ◽  
Object Code ◽  
Normal Test ◽  
Class B ◽  
Water Absorption Test

The main objective of this study was to find out and analyze how much the influence of the coconut shell charcoal had on changes in compressive strength and water absorption in the K-175 paving block. This research method is experimental research, which is a research of making paving block specimens, by conducting activities or experiments using coconut shell waste as a mixture of paving blocks, with a mix design mix referring to the comparison of concrete mix with K-175 quality (SNI 03-2834-2000). The conversion value of compressive strength of specimens at the age of 7 days to 28 days from specimens N, 5%, 10%, 15% and 20% is 271,80 kg/cm², 205,12 kg/cm², 102,57 kg/cm²,76,92 kg/cm² and 64,11 kg/cm² respectively. In the normal test code, the paving block is classified as class B quality, while the 5% specimen code is classified as class B quality, for the test object code 10%, 15%, and 20% do not meet the paving block quality standards. The results of the water absorption test increased in paving blocks with a combination of coconut shell charcoal. All of them have increased water infiltration on paving blocks.Tujuan utama dari penelitian ini adalah untuk mengetahui dan menganalisa seberapa besar pengaruh arang tempurung kelapa terhadap perubahan kuat tekan dan resapan air pada paving block K-175. Metode penelitian ini adalah penelitian eksperimen, yaitu penelitian pembuatan benda uji paving block, dengan cara melakukan kegiatan atau percobaan pemanfaatan limbah tempurung kelapa sebagai campuran paving block, dengan perbandingan mix design mengacu pada perbandingan campuran beton dengan mutu K-175 (SNI 03-2834-2000). Hasil nilai konversi kuat tekan benda uji pada umur 7 hari ke umur 28 hari dari benda uji N, 5%, 10%, 15%, dan 20% adalah 271,80 kg/cm², 205,12 kg/cm², 102,57 kg/cm²,76,92 kg/cm² dan 64,11 kg/cm². Pada kode benda uji normal paving block tergolong dalam mutu kelas B, sedangkan pada kode benda uji 5% tergolong dalam mutu kelas B, untuk kode benda uji 10%, 15%, dan 20% tidak memenuhi standar mutu paving block. Hasil dari uji resapan air  paving  block  dengan  penambahan  arang  tempurung kelapa dari benda uji 5%, 10%, 15% dan 20%. Kesemuanya mengalami peningkatan resapan air pada paving block.

scholarly journals Recycling of waste incineration bottom ash in the production of interlocking concrete bricks

2021 ◽  
Vol 15 (2) ◽  
pp. 101-112
Author(s):  
Nguyen Huu May ◽  
Huynh Trong Phuoc ◽  
Le Thanh Phieu ◽  
Ngo Van Anh ◽  
Chau Minh Khai ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Bending Strength ◽  
Bottom Ash ◽  
Waste Incineration ◽  
Engineering Properties ◽  
Fine Aggregate ◽  
Test Results ◽  
Toxic Material ◽  
Visible Defect

This study presents an experimental investigation on the recycling of waste incineration bottom ash (IBA) as a fine aggregate in the production of interlocking concrete bricks (ICB). Before being used, the concentration of heavy metal in IBA was determined to confirm it is a non-toxic material. In this study, the IBA was used to replace crushed sand (CSA) in the brick mixtures at different replacement levels of 0%, 25%, 50%, 75%, and 100% (by volume). The ICB samples were checked for dimensions, visible defects, compressive strength, bending strength, water absorption, and surface abrasion in accordance with the related Vietnamese standards. The test results demonstrated that the IBA used in this study was a non-toxic material, which can be widely used for construction activities. All of the ICB samples prepared for this study exhibited a nice shape with consistent dimensions and without any visible defects. The incorporation of IBA in the brick mixtures affected engineering properties of the ICB samples such as a reduction in the compressive strength and bending strength and an increment in water absorption and surface abrasion of the brick samples. As a result, the compressive strength, bending strength, water absorption, and surface abrasion values of ICB samples at 28 days were in the ranges of 20.6 – 34.9 MPa, 3.95 – 6.62 MPa, 3.8 – 7.2%, and 0.132 – 0.187 g/cm2, respectively. Therefore, either partial or full replacement of CSA by IBA, the ICB with grades of M200 – M300 could be produced with satisfying the TCVN 6476:1999 standard in terms of dimensions, visible defects, compressive strength, water absorption, and surface abrasion. These results demonstrated the high applicability of the local IBA in the production of the ICB for various construction application purposes. Keywords: interlocking concrete brick; waste incineration bottom ash; visible defect; compressive strength; bending strength; water absorption; surface abrasion.

scholarly journals Investigation of Thermal, Mechanical and Transport Properties of Ultra-Lightweight Foamed Concrete (ULFC) Strengthened with Alkali Treated Banana Fibre

2021 ◽  
Vol 86 (1) ◽  
pp. 123-139
Author(s):  
Mohammed Hassan Nensok ◽  
Md Azree Othuman Mydin ◽  
Hanizam Awang
Keyword(s):  
Compressive Strength ◽  
Thermal Properties ◽  
Water Absorption ◽  
Volume Fraction ◽  
Fibre Volume Fraction ◽  
Fibre Volume ◽  
High Porosity ◽  
Control Specimen ◽  
Sem Images ◽  
Banana Fibre

Traditionally, Ultralightweight Foam Concrete (ULFC) is primarily used to replace filling excavations, ditch restoration and underground channels, because of their high porosity, water absorption and low strength. Yet, ULFC is characterized by excellent thermal properties and could be an alternative for sustainable energy-efficient building material. This study investigates the properties of an ULFC strengthened with alkali-treated banana fibre. The low density ULFC of 600kg/m3 was fabricated and strengthened with alkali-treated banana fibre. Fibre volume fraction of 0.25%, 0.35%, 0.45% and 0.55% were compared to the unreinforced specimens, serving as the control specimen (no fibre addition). Mix proportioning of 1:1.5:0.45 of cement, sand, and water was respectively adopted throughout the mix. The alkali treated banana fibre strengthened ULFC was tested for compressive strength, sorptivity and thermal properties. Morphology of the treated fibre and ULFC composites was studied using SEM micrograph. The result depicts that ULFC exhibited the optimum compressive strength of 1.1604N/mm2 with the fibre volume fraction of 0.35%. Sorptivity or rate of water absorption was testified to upsurge, after 24 hours duration at fibre volume fraction of 0.55%, recording a 56.12% increment compared to the control specimen. The finding displays that at the highest-fibre volume fraction of 0.55%, thermal conductivity and diffusivity decrease by 13.17% and 28.16%, correspondingly, whiles the specific heat capacity increases to 37.17% all compared with unreinforced specimens. SEM images reveal that the presence of lumen and the nature of porous and fibrous alkali-treated banana fibre. Hence, it is endorsed that ULFC produced with alkali-treated banana fibre should be utilized as an infill material for composite system.

Comparative Study between ABNT/NBR 15270/2005 and a New Hollow Ceramic Block for Non-Load-Bearing Masonry Manufactured in Santarém - Pará (Brazil)

2019 ◽  
Vol 958 ◽  
pp. 35-40
Author(s):  
Fernanda C.M. Esmanhotto ◽  
Matheus C. Mota ◽  
Hugo R.A.S. da Silva ◽  
Victor H.P. Moutinho ◽  
Alexandre Zaccaron ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Strength Test ◽  
Ceramic Product ◽  
Load Bearing ◽  
Ceramic Block ◽  
Compressive Strength Test ◽  
Ceramic Blocks ◽  
Water Absorption Test ◽  
Technical Properties

The study aims to evaluate the technical properties of the application of filler element for slab as a hollow ceramic blocks for non-load-bearing masonry. This ceramic product has dimensions of approximately 6.5x25x81.5 cm, and because it presents different geometries of the conventional ceramic block and characteristics different from those required by the norm, this product was submitted to the norms of non-load-bearing masonry and being carried out tests of geometry, water absorption and compressive strength, besides the visual characteristics according to the standard ABNT NBR 15270/2005. Thirteen samples were used for the geometry and compressive strength test, and six for the water absorption test. Some samples presented a great deviation from the square, besides not being within the established limits of the planes and septa. The water absorption is within the established limits and compressive strength is lower than that required by the standard.

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