Effect of Age on Strength of Unfired Soil Lime Bricks Containing Non Uniform Coconut Fibers

Purnomo, He Ru; Putra, Ramandika Garindra; Syaifulloh, R. Mochammad; Sulistyawan, Iwan

doi:10.4028/www.scientific.net/amm.423-426.1096

Cited by 3 publications

(11 citation statements)

References 6 publications

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“…Recent characterization [8], [10] of the soil minerals from the first and second batch of soil has resulted that Muscovite, Kaolinite, Cristobalite and Hematite are the four main source minerals of the soil.…”

Section: Experimental and Methodsmentioning

confidence: 99%

“…Compressive and bending strength of early ages unfired bricks containing uniform untreated fibers are in general higher that those containing non uniform untreated fibers [7]. 4% non uniform length of coconut fibers addition to the same mixture have been studied in accordance with bricks ages of 14, 28, 56, and 90 days [8]. Another study [9] with the same mixture but with an addition of 4% uniform length of coir has been studied in accordance to those same bricks ages.…”

Section: Introductionmentioning

confidence: 99%

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Experimental Evaluation of Three Different Humidity Conditions to Physical and Mechanical Properties of Three Different Mixtures of Unfired Soil Bricks

Purnomo¹,

Arini²

2019

MST

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Unfired brick is considered as a more environmentally friendly material than fired brick. It has lower mechanical properties than that of fired brick where humidity influences both bricks. Physical and mechanical properties of unfired bricks made of three kinds of mixtures were studied experimentally under three humidity conditions. The first kind of unfired brick was made only with soil and water while the second type was made of a mixture of soil, water and lime, and the third type was a mixture of soil, water, lime and uniform treated coir where 4% of lime mass was substituted with coir mass. Physical properties evaluation consisted of water content, absorption, volume shrinkage and density of those unfired bricks. Some variations occur in the third type of unfired bricks physical test results, where in general in more humid conditions there are tendency to have higher density, higher absorption, higher water content and less volume shrinkage compared to two other types of unfired bricks. Mechanical properties are evaluated by its modulus of rupture, compressive strength and modulus of elasticity. It is found that the addition of 4% treated 2.5 cm coir gives better mechanical properties in humid conditions compared to others types of unfired bricks. AbstrakEvaluasi Eksperimental Tiga Kondisi Kelembaban terhadap Properti Fisik dan Mekanik Tiga Campuran Bata Tidak Dibakar. Bata tidak dibakar dianggap lebih ramah lingkungan dibanding bata dibakar. Bata tidak dibakar memiliki properti mekanik yang lebih rendah daripada bata dibakar, dimana kelembaban berpengaruh pada keduanya. Properti fisik dan mekanik bata tidak dibakar yang dibuat dari tiga macam campuran dipelajari secara eksperimental terhadap tiga kondisi kelembaban. Tipe pertama dari bata tidak dibakar dibuat hanya dengan tanah dan air, sedangkan tipe kedua terbuat dari campuran tanah, air dan kapur; dan tipe ketiga terbuat dari campuran tanah, air, kapur dan serabut kelapa seragam yang sudah mendapat perlakuan sebelumnya dimana 4% dari massa kapur diganti dengan massa serabut kelapa. Evaluasi properti fisik terdiri dari kadar air, absorbsi, susut volume dan densitas bata tidak dibakar tersebut. Beberapa variasi muncul pada hasil tes fisik tipe bata ketiga, dimana secara umum pada kondisi lebih lembab terdapat kecenderungan untuk memiliki densitas lebih tinggi, absorbsi lebih tinggi, kadar air tinggi dan susut volume lebih kecil dibandingkan terhadap kedua jenis lainnya bata tidak dibakar. Properti mekanik dievaluasi oleh modulus keruntuhan, kuat tekan dan modulus elastisitasnya. Diketemukan bahwa penambahan 4% serabut memberikan properti mekanik yang lebih baik pada kondisi lembab dibandingkan tipe bata tidak dibakar lainnya.

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Section: Experimental and Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental Evaluation of Three Different Humidity Conditions to Physical and Mechanical Properties of Three Different Mixtures of Unfired Soil Bricks

Purnomo¹,

Arini²

2019

MST

Self Cite

View full text Add to dashboard Cite

show abstract

“…From those two mixes, the mix design with the lower proportion of lime is used in this study. The effect of ages to the addition of non uniform coconut fibers to the mixture of lime, soil and water have been studied in accordance with bricks ages of 14, 28, 56 and 90 days [7]. A non-uniform fiber addition constituting of 1/3 part each of 1 cm, 2.5 cm and 4 cm fiber length has been used in the study.…”

Section: Introductionmentioning

confidence: 99%

“…The effect of ages to the addition of uniform 2.5 cm coconut fibers to the same soil lime mixture will be studied in accordance to those same bricks ages. The 2.5 cm uniform fiber length is taken for the study as it represents the average of 1 cm, 2.5 cm and 4 cm fiber length used in the previous study [7]. In turn the previous study [7] and this study will give insight of the effect of coir uniformity to the strength of unfired soil lime bricks on different ages.…”

Section: Introductionmentioning

confidence: 99%

“…The 2.5 cm uniform fiber length is taken for the study as it represents the average of 1 cm, 2.5 cm and 4 cm fiber length used in the previous study [7]. In turn the previous study [7] and this study will give insight of the effect of coir uniformity to the strength of unfired soil lime bricks on different ages. This study uses the same type of materials employed in the previous [5] and recent studies [6] [7].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Coconut Coir Uniformity on Strength of Unfired Soil Lime Bricks

Purnomo

Putra

Syaifulloh

et al. 2014

AMR

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The paper discusses strength-time relation of unfired bricks reinforced with and without natural fibers. Untreated and treated coconut fibers with three different lengths (1 cm, 2.5 cm and 4 cm) were prepared for soil lime bricks reinforcements. The effects of 4% uniform 2.5 cm fiber reinforcement was compared to the effects of 4% non-uniform fiber reinforcement, which constitutes a fiber mix between 1/3 part each of 1 cm, 2.5 cm and 4 cm fiber length. Absorption of brick was also evaluated. Experimental investigations reveal that for all type of bricks, up to 90 days compressive strengths decrease a little but bending strengths rapidly decrease with time. The results show that unfired bricks added with uniform treated fiber resulted in better strength performances compared to those added with uniform untreated, non-uniform untreated and non-uniform treated fibers, and also to those without fibers.

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Influence of Water Content of Soil to Strength of Unfired Soil Lime Bricks

Purnomo

Syah

Syaifulloh

et al. 2015

AMM

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The paper discusses strength-time relation of unfired soil-lime bricks in presence of different water content of soil as one of principal materials for the brick making. Two batches of soil-lime bricks were made with a mixture of lime, soil and water with a mass proportion of 1: 5.7: 1. Water contents of the first and second batch of soil are 30% and 40.581% respectively. Both batches of brick underwent compression and three point bending test. Absorption and physical change of bricks were also evaluated. Experimental investigation reveals that for both batches of bricks, up to 90 days compressive strength decreases a little but modulus of rupture rapidly decreases with time. The study shows that unfired soil-lime bricks with lower soil water content resulted in better strength performances compared to those with higher soil water content.

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Effect of Age on Strength of Unfired Soil Lime Bricks Containing Non Uniform Coconut Fibers

Cited by 3 publications

References 6 publications

Experimental Evaluation of Three Different Humidity Conditions to Physical and Mechanical Properties of Three Different Mixtures of Unfired Soil Bricks

Experimental Evaluation of Three Different Humidity Conditions to Physical and Mechanical Properties of Three Different Mixtures of Unfired Soil Bricks

Effect of Coconut Coir Uniformity on Strength of Unfired Soil Lime Bricks

Influence of Water Content of Soil to Strength of Unfired Soil Lime Bricks

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