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고성능유동화제(高性能流動化劑)가 콘크리트의 공학적(工學的) 특성(特性)에 미치는 영향(影響)(I)
박승범 ( Park Seung Bum ),이보성 ( Rhe Bo Sung ) 한국농공학회 1984 韓國農工學會誌 : 전원과 자원 Vol.26 No.3
This study was attempted in order to investigate the effects of superplasticizers on fresh and hardened concrete. The experimental program included tests on the slump and slump loss, bleeding, time of set, air content, the compacting, factor Vee Bee, compressive strength, tensile and flexural strength, permeability, shrinkage and freege-thaw durability. The major conclusions that can be drawn on the study are as follows. 1. Superplasticizers were observed to have an appreciable fluidifying action in fresh concrete so that tinder appropriate conditions, they either considerably improved its workability or permitted a water reduction of at least 8-12% to be made while maintaining normal workability. 2. The bleeding ratios of base and S.P. Concrete were much lower than those of the conventional concrete. Differences between the base and S.P. Concrete were insignifician. 3. The setting time was the longest for conventionla concrete, followed by S.P. concrete and base concrete in thatorder. And AE water reduction admixtures showed an appreciable influence on the setting and hardening characteristics of concrete and prolonged the stiffening times. 4. The high initial slump values of S.P. concrete generally decreased rapidly with increased standing time. CF values showed increasing tendencies with the increase of S.P. content, and excessive addition of S.P. caused the segregation of fresh concrete, resulting in its rejection. 5. Though there was a slight increase in strength, no significant differences are observed between base and S.P. concrete in terms of the compressive, tensile and flexural strength. 6. The permeability of S.P. concrete was significantly less than that of the conventional concrete, and the shrinkage of S.P. concrete was considerably smaller than that of the conventional concrete, but there were no significant differences between base and S.P. concrete. 7. Compared to base concrete, S.P. concrete without entrained air tended to slightly increase freeze-thaw durability, and S.P. concrete with an appropriate entrained air gave satisfactory resistance to freezing and thawing.
朴承範(PARK Seung-bum) 고구려발해학회 2005 고구려발해연구 Vol.19 No.-
The investigation, excavation on Koguryo mausoleums carried out over past years, confirmed Koguryo mausoleums had altar. This study made a try of the altar. In result, we have concluded that all 'altars' investigated or excavated are not altars. But we are sure the altar was belong to mausoleums zone, too. Especially, it is clearly the altar is associated with function of memorial rite for the tomb(墓祭). From this point of view, we have gave attention to altar's azimuth. It is oriented to east-north, where is get connected Gyeruboo(?婁部) Koguryo royal's native place. To conclusion, the altar was the space memorial ceremony, sending back the preceding king to his ancestor's native place, was held.
박승범(Park Seung-bum) 한국고대학회 2003 先史와 古代 Vol.19 No.-
This thesis attempted to construct the ritual systems of Baekje(百濟) in the age of Hansung(漢城). Basing on the system of rites in Silla(新羅), We composed the system of rites and its contents. Even so, it doesn't mean the rites of Baekje had a identical fonnation with Silla's. it is mearly a question of its gradation. In the age of Hansung, Baekje had 3-4 degrees of rites. The rites of highest(大祀) is consisted of the god of the heaven and the god of the earth, the contribution originator-Dongmyong(東明), which, if these were not in the rites of highest, maybe were in the rites of special (特祀) or of Extra(別祀) degree. By the way, probably, Baekje thought all the more of the former. The rites of middle(中祀) and low(小祀) degrees, divided into two according to the importance, are consisted of mountains and rivers. In the middle degrees, or the highest degree, Three Mount(三山), namely Bua-ak(負兒岳)·Hoyng-ak(橫岳)·Soongsan(崇山) were a stage of the birth myth of Kingdom, so regarded as divine scene, and a strategic point. Besides Three Mount, the other mountains and some spotes, as hunting and military sites, were into the rule book of rites(祀典). Extending territory, Baekje probably organized and adjusted these ritual sites according to changes of their importance. And such organizing rites guaranteed her rightfullness of domination over conqerded territory. But it is important that how the ritual system was operated. Considering that Chungmak-dong(竹幕洞) ritual site gives informations, it convinces us the state brings under its control all ritual sites into the rule book of rites and some ritual sites might have been symbols of an ideal governance of incomplete conquest region.
박승범(Park Seung-bum) 고려사학회 2009 한국사학보 Vol.- No.37
Buyo, on the basis of culture which by herself established extend over several centuries, achieved national's growth. In these process, actively adopting neighbor the Nomad and Chinese culture, Buyo devised reorganization order of Northern and Eastern Asia after the fall of Wiman Choson. Necessities of ideology for ruling steered grow thing Buyo to create Dongmyeng Myth. Chinese culture had considerable infuence over that. But even if Buyo borrowed narrative structure. Its minute nature was based on Buyo's cultural identity. After the fall of Wiman Choson, The change in situation of Manturia and northern the Korean Peninsula leaded Buyo joinning the good neighborly relationship with China to struggle for the supremacy. But As Goguryo obtained the initiative, Buyo was deprived of influence upon the world of pan Buyo. This Causeleaded that Buyo, Since 5th century, was to suffered serious damage that could not further keep being as a state. In these process, Dongmyeng Myth had no option but to turn into Jumong Myth and Goguryo could create 'East Buyo' Myth which the thrown identity of Buyo into disarray. And 'East Buyo' Myth is a ideology of Goguryo to gain status of suzerain state in the world of pan Buyo as made full use of the initiative obtained in relation to Buyo. After that time, at its own growth and change of political system Goguryo varied Jumong Myth. The narrative structure of Chinese myth was projected in Jumong Myth, and minute nature was diversifying. But the concreteness of narrative was not exceeded of moral criterion. That is a distinguishing mark of Dongmyeng Type Myth compared with Chinese myth.