• Journal of the Korea Concrete Institute
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• v.12 no.4
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• pp.15-22
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• 2000

The objective of this study is to investigate the degree of surface-glossing of flowing concrete, varying with W/C, types of forms and form oils. According to the experimental results, the degree of surface-glossing of flowing concrete is turned out to be higher than that of base concrete, as the slump increases. The degree of surface-glossing of concrete with 40% of W/C is higher than that with 50%. The orders of degree of surface-glossing with the types of forms are as follows : acryle > fancy plywood > metal form > plywood. When water solution type form oil is applied to the surface of forms, we can achieve higher degree of surface-glossing. It shows that the degree of surface-glossing decreases with elapsed time.

• Proceedings of the Korea Concrete Institute Conference
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• 2000.10b
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• pp.911-914
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• 2000

Surface glossing and physical properties of exposed concrete varied with blast furnace slag content are dsicussed in this paper. According to experimental results, as the content of blast furnace slag increases, concrete gains high strength moderately at later stage and surface glossing increase. It shows that glossing decrease with age. Surface glossing shows high as W/B decreases and surface coating is applied. Concrete according to form type shows good results in surface glossing in order for acryl form, fancy form and steel form.

• Proceedings of the Korea Concrete Institute Conference
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• 1999.04a
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• pp.197-202
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• 1999

The properties of surface-glossing of exposed concrete with the kinds of form materials and form oil are investigated under various slump value. According to the experimental results, surface-glossing has high value with the increase of slump. In case of surface-glossing with the kind of the form, the form made of acryl has the best performance among the form kinds tested in this experiment. The order of surface-glossing is follows ; fancy plywood > metal form > plywood. Water solution type form oil has better performance in surface-glossing than oil solution type form oil. Also, surface-glossing get worse with the elapse of age.

• Proceedings of the Korea Concrete Institute Conference
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• 2000.04a
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• pp.177-180
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• 2000

The objective of this study is to analyze the degree of surface-glossing of cement mortar with the grading of aggregate and contents of limestone powder. According to the experimental results, degree of surface-glossing of cement mortar using river sand is higher than that of crushed sand. As F.M of aggregates is less than 2.78, degree surface-flossing of cement mortar has better performance, Also, as the contents of limestone power increase, degree of surface-flossing is shown to be improved, And it shows that degree of surface-glossing decrease with elapse of age.

• Proceedings of the Korea Concrete Institute Conference
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• 2000.04a
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• pp.85-88
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• 2000

This paper is dealt with the ways of the improvement of the surface glossing of exposed concrete through the construction field test. The field applied in this test is located at Daechon, Chungnam province where the service training institute of Chongju university has been built. The flowing method is applied. According to the test results, as water to cement ratio, or slump increase after flowed, surface glossing tends to be improved. As for the effects of the forms typer, following orders, which is shown to be better surface glossing values, are given; Acryle > fancy wood forms > steel forms > plywood forms.

• Proceedings of the Korea Concrete Institute Conference
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• 1999.10a
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• pp.147-150
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• 1999

Glossing Exposure Concrete is a high quality architectural concrete, i.e., appearance of natural stone and a marbling effect concrete to achieve high quality glassy reflective surface for outer wall of the building. In this study to obtain the conservation and durability of gloss of the "glossing exposure concrete" we developed a from practice and the best mix proportion and derived the optimistic removal time of form to bring out the durable glassy reflective surface and durable concrete. Hereby with the "glossing exposure concrete" obtained, we investigate the accelerate carbonation and accelerate durability test to evaluate the durability factor of this type of concrete.is type of concrete.

• Proceedings of the Korea Concrete Institute Conference
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• 1998.04a
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• pp.249-254
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• 1998

Recently, high quality architectural concrete, i.e., appearance of natural stone and a marbling effect, is needed, to achieve high quality glassy reflective surface for outer wall of the building. In this study to achieve above characteristics of the "glossing exposure concrete" we developed a form practice and the best mix proportion and derived the optimistic removal time of form to bring out the durable glassy reflective surface and durable concrete. Hereby with the "glossing exposure concrete" obtained we applicate for first time, to Electronics and Telecommunications Research Institute situated on Taedok Science Town and it will be the beginning of the construction of "glossing exposure concrete" in this country.oncrete" in this country.ntry.

• Journal of the Korea Concrete Institute
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• v.14 no.1
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• pp.92-99
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• 2002

This paper is Intended to investigate physical properties and surface glossing of exposed concrete incorporating granulated blast furnace slag(BS). According to test results there is no remarkable variations in fluidity and air content with increase of BS, but unit weight shows decline tendency Compressive strength at later age gains considerably due to potential hydraulicity reaction of BS. It shows that drying shrinkage increases. It is found that low W/B, surface coating and high BS content lead to favorable effects on the surface glossing of exposed concrete because of filling effects on the voids of the concrete. It is improved by about 7 ％ with increase every 10 ％ of BS content. The effects of form pannel kinds on the improvement of surface glossing are in order for acryl, fancy, steel and wood.

• Proceedings of the Korea Concrete Institute Conference
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• 2001.05a
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• pp.391-396
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• 2001

Exposed concrete execution is utilized insufficiently due to surface honecomb and undesirable appearance by entrapped air when existing placing method is applied. Therefore, surface glossing and impact properties of cement mortar incorporating fiber glass net blast furnace slag, expansive admixture and Polypropylene fiber are investigated in order to develop precast exposed concrete pannel by dry construction method. The kinds of the forms, placing method and admixture contents are varied. According to test results, surface glossing decrease with elapse of age. Considering the form kinds, surface glossing with acryle + astage shows the best performance. Placing horizontally shows positive results in reducing surface defects such as honecomb. Impacting resistance shows the best performance when glass fiber net applied, due to the enhance in toughness and absorption of impact.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2004.05a
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• pp.109-112
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• 2004

Contemporary, architecture calls for a wide range of surface textures and treatments. A surface compatible with the architecture's design may vary from a glass-smooth finish to one requiring special sculptured ornamentation. These surfaces require many different types of form sheathing and lining. The purpose, of study development new design form and made elaborateness shape. Easy to used in field that architecture finish material not used expect effective reduce of working hours, personnel expenses, architecture finish material, cost, through this study, we have figured out the best mix proportion for durability and glossability of glossing exposure concrete.