본 연구는 점토와 골재로 구성된 벽돌을 경화하는데 있어 효소 첨가제의 효과를 재료시험과 이미지 프로세싱을 통해 분석하였다. 벽돌의 강도와 밀도 시험에 사용한 벽돌 샘플의 점토/골재 중량비는 70/30, 60/40, 50/50, 40/60, 30/70이였으며, 최대 압축강도와 휨강도는 각각 5MPa와 1.25MPa으로 중량비 60/40에서 발현되었다. 또한 최대 건조단위 중량은 $2.073g/cm^3$으로 중량비 50/50에서 발현되었다. 시험 결과 전반적으로 벽돌의 강도는 효소를 첨가함으로 약 27% 향상되었다. 강도 향상을 위해서는 점토/골재 중량비 60/40, 밀도 향상을 위해서는 점토/골재 중량비 50/50에 효소를 첨가하여 벽돌을 경화하는 것이 효과적인 것으로 확인되었다. 효소 첨가 시 점토-골재 벽돌의 결합구조가 더 치밀해짐을 SEM-EDX 분석과 Matlab을 이용한 이미지 프로세싱을 통해 확인하였으며, 이를 통해 효소가 점토와 골재 간 결합구조를 형성하여 벽돌의 강도와 밀도를 향상시키는 효과가 있는 것으로 판단된다.
본 연구는 점토와 골재로 구성된 벽돌을 경화하는데 있어 효소 첨가제의 효과를 재료시험과 이미지 프로세싱을 통해 분석하였다. 벽돌의 강도와 밀도 시험에 사용한 벽돌 샘플의 점토/골재 중량비는 70/30, 60/40, 50/50, 40/60, 30/70이였으며, 최대 압축강도와 휨강도는 각각 5MPa와 1.25MPa으로 중량비 60/40에서 발현되었다. 또한 최대 건조단위 중량은 $2.073g/cm^3$으로 중량비 50/50에서 발현되었다. 시험 결과 전반적으로 벽돌의 강도는 효소를 첨가함으로 약 27% 향상되었다. 강도 향상을 위해서는 점토/골재 중량비 60/40, 밀도 향상을 위해서는 점토/골재 중량비 50/50에 효소를 첨가하여 벽돌을 경화하는 것이 효과적인 것으로 확인되었다. 효소 첨가 시 점토-골재 벽돌의 결합구조가 더 치밀해짐을 SEM-EDX 분석과 Matlab을 이용한 이미지 프로세싱을 통해 확인하였으며, 이를 통해 효소가 점토와 골재 간 결합구조를 형성하여 벽돌의 강도와 밀도를 향상시키는 효과가 있는 것으로 판단된다.
This study investigates enzyme stabilization in clay-rock bricks through mechanical tests and image processing. Appropriate soil mixtures were designed using clay/crushed rock with ratios of 70/30, 60/40, 50/50, 40/60, and 30/70 by weight to verify the strength of the enzyme brick and soil compactio...
This study investigates enzyme stabilization in clay-rock bricks through mechanical tests and image processing. Appropriate soil mixtures were designed using clay/crushed rock with ratios of 70/30, 60/40, 50/50, 40/60, and 30/70 by weight to verify the strength of the enzyme brick and soil compaction. The maximum compressive and flexural strengths in the 60/40 ratio mixture were found to be 5MPa and 1.25MPa, respectively; however, the maximum dry unit weight of $2.073g/cm^3$ was found in the 50/50 clay/gravel ratio mixture. Generally, the strength of the enzyme brick was improved by 27%. The paper concludes that in order to achieve optimal strength, soils should be mixed with the 60/40 clay/gravel ratio, which provides an adequate strength, while 50/50 ratio should be used for achieving more compaction. The SEM-EDX observation and Matlab image processing verified how the bond structure appeared after enzyme stabilization. It was found that enzymes created bond with the clay soil and the crushed rock for rendering strength and stability.
This study investigates enzyme stabilization in clay-rock bricks through mechanical tests and image processing. Appropriate soil mixtures were designed using clay/crushed rock with ratios of 70/30, 60/40, 50/50, 40/60, and 30/70 by weight to verify the strength of the enzyme brick and soil compaction. The maximum compressive and flexural strengths in the 60/40 ratio mixture were found to be 5MPa and 1.25MPa, respectively; however, the maximum dry unit weight of $2.073g/cm^3$ was found in the 50/50 clay/gravel ratio mixture. Generally, the strength of the enzyme brick was improved by 27%. The paper concludes that in order to achieve optimal strength, soils should be mixed with the 60/40 clay/gravel ratio, which provides an adequate strength, while 50/50 ratio should be used for achieving more compaction. The SEM-EDX observation and Matlab image processing verified how the bond structure appeared after enzyme stabilization. It was found that enzymes created bond with the clay soil and the crushed rock for rendering strength and stability.
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문제 정의
The main objective of this study is to investigate the effect of the enzymes on clay-rock brick strength and compaction effect with different proportions of the clay/rock mix.
This study aimed to investigate enzyme stabilization in clay-rock soil. Bricks were designed having clay/rock ratios of 70/30, 60/40, 50/50, 40/60, and 30/70 by weight with enzyme/water ratio of 1/100, 1/300, 1/500 and without enzyme stabilization.
제안 방법
This study aimed to investigate enzyme stabilization in clay-rock soil. Bricks were designed having clay/rock ratios of 70/30, 60/40, 50/50, 40/60, and 30/70 by weight with enzyme/water ratio of 1/100, 1/300, 1/500 and without enzyme stabilization. Compressive strength, flexural strength, and compaction of soil were tested.
Bricks were designed having clay/rock ratios of 70/30, 60/40, 50/50, 40/60, and 30/70 by weight with enzyme/water ratio of 1/100, 1/300, 1/500 and without enzyme stabilization. Compressive strength, flexural strength, and compaction of soil were tested. The particles size highly affected the strength of the enzyme brick.
Tests were performed to measure the compressive strength, flexural strength, and the compaction of enzyme rock fill with clay at different enzyme/water ratios. Though the SEM observations were used to observe the structure, the focus of this study was primarily on mechanical stabilization.
Tests were performed to measure the compressive strength, flexural strength, and the compaction of enzyme rock fill with clay at different enzyme/water ratios. Though the SEM observations were used to observe the structure, the focus of this study was primarily on mechanical stabilization.
대상 데이터
it was crushed to less than 10mm in size. The enzymes used in this study were obtained from the Eco Enviro Services(Aust) Pty Ltd. (Australia), known under the trade name of Eko-Soil. The number of companies supplying the enzyme products for soil stabilization is limited.
The materials used in this study were clay, rock, and enzyme. The clay contained bacteria capable of reacting with the enzyme.
이론/모형
Where P is the maximum load(N), L the distance between the supports(120mm), w the width(80mm), and b is the height of the specimen(50mm). The compaction of the soil into the mold at various moisture contents was based on the standard compaction test AS 1289(Australian standards). The soil was compacted into a mold in three equal layers, with each layer receiving the constant blows of a hammer weight equivalent to 2745KN-m/m3 compactive energy.
). The flexural strength test was conducted using designation ASTM C42(ASTM 1999). Flexural strength represents the highest stress experienced within the material at its moment of yield and is given by:
성능/효과
The maximum compressive and flexural strengths were found for the 60/40 ratio; however, the maximum dry unit weight was found for the 50/50 clay to gravel ratio. Based on these studies, the paper concludes that in order to obtain better strength, soils should be mixed in 60/40 clay/rock ratio; however, the clay/gravel ratio of 50/50 should be used to achieve more compaction with enzyme/water. Finally, SEM observation taken from the 60/40 sample shows the structural image and identifies the chemical oxides of enzyme brick.
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