• Title/Summary/Keyword: 배합조건

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Monitoring for Rheological Properties of Black Jam Produced by Black Ginseng and Black Garlic (흑삼 및 흑마늘을 이용한 블랙잼 유동특성 모니터링)

  • Lee, Gee-Dong
    • Journal of the Korean Applied Science and Technology
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    • v.37 no.2
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    • pp.183-191
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    • 2020
  • This study monitored the rheological properties of jams manufactured using the black ginseng and black garlic. The conditions for mixing black jam were black ginseng (X1, 30-54 g), black garlic (X2, 75-135 g), pectin 4.5 g, apple paste 270 g, and fructo-oligosaccharide 360 g. The response surface analysis was performed with springiness, cohesiveness, chewiness, brittleness and gumminess. The R2s of the regression equation for springiness, cohesiveness, chewiness, brittleness and gumminess were recognized at a significant level of 5 to 10 %, with 0.8948, 0.9103, 0.9032, 0.9097, and 0.8561, respectively. The combination conditions of black ginseng and black garlic with the highest springiness of black jam were found to be 194.39% (springiness) with black ginseng 54.00 g and black garlic 105.83 g, while the conditions of black ginseng and black garlic mixing with the lowest springiness were found to be 164.11% with black ginseng 31.48 g and black garlic 119.43 g. The mixing conditions of black ginseng and black garlic with the highest cohesiveness of black jam and its consistency were 40.96% (cohesiveness) with black ginseng 48.85 g and black garlic 129.62 g, while black ginseng and black garlic combination conditions with the lowest cohesiveness were found to be 32.96% with black ginseng 50.06 g and black garlic 82.77 g. Black ginseng and black garlic mixing conditions, which have the highest chewiness of black jam, was 43.19 g (chewiness) from black ginseng 42.95 g and black garlic 106.83 g. Black ginseng and black garlic mixing conditions and their brittleness were found to be the highest in black ginseng 32.10 g and black garlic 88.04 g to 16,874 g. Black ginseng and black garlic mixing conditions and their brittleness were found to be 678 g from black ginseng 50.53 g and black garlic 83.91 g. Black ginseng and black garlic mixing conditions and their gumminess were 14.06 g with black ginseng content of 32.91 g and black garlic content of 124.60 g. By examining the relationship between black ginseng/black garlic ratio and the rheological property of black jam from above results, it is believed that black jam can be produced for anyone to enjoy using health function material.

배합기술과 에너지 보존

  • Johnson P.S
    • The tire
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    • s.84
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    • pp.2-6
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    • 1979
  • 배합기술자들이 최적의 고무가공기계에서 최적의 배합제를 사용하여 최적의 가공조건에서 작업을 함으로써 가공 에너지를 절약할 수 있는 방법들을 소개하여 에너지 보존계획수립업무에 도움을 주고자 한다.

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Rheological Model of Flowable Concrete Considering with Mix Conditions (배합조건에 따른 유동콘크리트의 레올로지 특성모델)

  • Cho, Chang-Geun;Choi, Yeol;Kim, Wha-Jung;Kim, Jeong-Seop
    • Proceedings of the Korea Concrete Institute Conference
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    • 2009.05a
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    • pp.251-252
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    • 2009
  • Rheological characteristics of flowable concrete manufactured in domestic products of cement, aggregates, and SP admixtures were investigated by experiments and the predictive model of rheological characteristics of flowable concrete has been newly proposed considering with the effects of the W/C ratio and the dosage of SP admixture.

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Study on Mixing Condition of the Rubber Composite Containing Functionalized S-SBR, Silica and Silane : II. Effect of Mixing Temperature and Time (변성 S-SBR Silica-Silane 고무복합체의 배합조건에 대한 연구 : II. 배합온도와 시간의 영향)

  • Jang, Suk-Hee;Kim, Wook-Soo;Kang, Yong-Gu;Han, Min-Hyun;Chang, Sang-Mok
    • Elastomers and Composites
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    • v.48 no.2
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    • pp.103-113
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    • 2013
  • The properties of the rubber composites containing a silane and silica were evaluated by changing the mixing time and temperature, in order to find the optimum mixing conditions. Characteristics of the compounds were evaluated after mixing at $120^{\circ}C$, $140^{\circ}C$, and $160^{\circ}C$ with various mixing time. With increasing of mixing time, mooney viscosity decreased while the bound rubber contents of the compounds increased. Viscosity rise by increased mixing time was bigger at low temperature and the higher the mixing temperature the faster in the formation of bound rubber. With lower mixing temperature of $120^{\circ}C$, cross-linking rate was almost constant. Dynamic viscoelastic properties and dispersity of the compound showed that dispersion of ingredients and reaction was not sufficient with the mixing time of less than 10min. On the contrary, with high temperature, it was obvious that good dynamic and physical properties could be obtained due to sufficient coupling reaction, however it was thought this high temperature is not optimum because of sensitive cross-linking rate and physical properties and excessive formation of bound rubber. Consequently, it was confirmed that the mixing condition of 10min at $140^{\circ}C$ was optimum for the silane coupling reaction and dispersion of functionalized S-SBR containing silica and silane.

고무배합상(配合上)의 기본자세(基本姿勢) 및 지식(知識)

  • 편집부
    • Elastomers and Composites
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    • v.11 no.2
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    • pp.192-213
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    • 1976
  • 지금(至今)까지 고무의 배합(配合)과 이의 조성(組成)에 대(對)하여 나타냈으며 배합성분(配合性分)에 영향(影響)을 주는 인자(因子), 즉(卽) 고무류(類), 고무 혼합물(混合物), 가황제(加黃劑)의 선택(選擇), 카아본 블랙의 종류(種類), 배합조제(配合助劑)나 extender의 효과(效果), 비흑색(非黑色) 충전제(充塡劑), 수지(樹脂) 그리고 지연제(遲延劑) 및 배합(配合)에 관계(關係)되는 사항(事項)을 논의(論議)하였다. 배합조건(配合條件)의 가장 중요(重要)한 것은 알맞은 고무의 선택(選擇)이며 다음으로는 가황제(加黃劑) 그리고 카아본 블랙의 순서(順序)로 되어 있다. 그 외(外)의 것도 중요(重要)한 역할(役割)을 하지만 상기(上記) 보다는 그렇게 핵의적(核心的)인 영향(影響)을 미치지는 않는다.

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Strength Prediction of Mixing Condition and Curing Time Using Cement-Admixed Marine Clay (해성점토를 이용한 시멘트 혼합토의 배합조건 및 재령일별 강도 예측)

  • Jeon, Je-Sung;Park, Min-Chul;Lee, Song
    • Journal of the Korean Geotechnical Society
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    • v.29 no.12
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    • pp.45-56
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    • 2013
  • Abrams equation could be effectively applied to predict strength of cement-admixed clay and clay-water content to cement content ratio is a fundamental parameter for governing strength. This paper analyses unconfined compression strength varying with $w_c/C$ and curing time using laboratory test results. An attempt is made to identify strength of composite soil of cement and clay according to variation of Abrams coefficients and curing time. The value B, which was considered to be constant value in past researches, needs to be considered as parameter variable with curing time. From Abrams equation a correlation was formed for unconfined compression strength with mixing conditions by $w_c/C$ and curing time as dependent variable. Regression results in this paper could be used to predict strength of cement-admixed clay at various mixing conditions.

Characteristics of Compressive Strength Development of High Strength Cement Composites Depending on Its Mix Design (고강도 시멘트 복합체의 배합조건에 따른 압축강도 발현 특성)

  • Jeong, Yeon-Ung;Oh, Sung-Woo;Cho, Young-Keun;Jung, Sang-Hwa;Kim, Joo-Hyung
    • Journal of the Korean Recycled Construction Resources Institute
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    • v.9 no.4
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    • pp.585-593
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    • 2021
  • This study investigates the compressive strength of high-strength cement composites with 64 mixture designs and 2 curing conditions. The cement composites were designed with varying water-to-binder ratios, silica fume content to cement, and binder content per unit volume of cement composite to explore compressive strength development depending on its mix design. An increase in the water-to-binder ratio decreased the compressive strength of the composites, having consistency with the trend in normal concrete. The compressive strength increased with ages at an ambient curing temperature, but it was not identified at high-temperature curing. The compressive strength development was negligible in case that silica fume content to OPC is 15%~25%, but a decrease in the con ten t below 15% reduced compressive stren gth. It was more obvious in the specimen of low water-to-binder ratio. The specimen with 840kg/m3 of binder content per unit volume had the highest compressive strength in this study, and the decrease in binder content reduced the compressive strength of high strength cement composites in low silica fume content.

A Study on Unconfined Compressive Strength of CLSM with Paper Sludge Ash (제지애쉬가 적용된 CLSM의 일축압축강도 특성에 관한 연구)

  • Park, Jeong-Jun;Lee, In-Hwan;Shin, Eun-Chul;Hong, Gigwon
    • Journal of the Korean Geosynthetics Society
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    • v.18 no.4
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    • pp.253-262
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    • 2019
  • This paper described the evaluation results on unconfined compressive strength characteristics of CLSM with paper sludge ash, in order to develop a CLSM that can prevent sewer pipe damage. The flowability test and the unconfined compressive strength test were performed according to mix design condition of CLSM. The flowability test result showed that the water content, which can satisfy the flowability criteria, was 24% to 32% according to the mix design condition. The results of unconfined compressive strength test showed that the strength incremental ratio was high between 1 and 7 days of curing time, and the strength at this time was more than about 50% of the strength at 28 days of curing time. The strength of CLSM was greatly influenced by fly ash. However, it was analyzed that the mixture of paper sludge ash is required when the reference strength of CLSM is considered. Although the strength of the high cement ratio was higher than that of the low cement, a cement ratio of 5% would be a reasonable mix design condition of CLSM.