Development of a New Composite Slab System Using a Carbon Fiber–Blended Cementitious Adhesive

Yoshitake, Isamu; Ogawa, Atsushi; Kim, Yail J.; Mimura, Yōichi

doi:10.1061/(asce)st.1943-541x.0000574

Cited by 11 publications

(6 citation statements)

References 8 publications

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“…The paper presents the designed stress of each material as below: I) at concreting Unit bending moment (M d1 ) due to the dead load are given in Eq. (1).…”

Section: Bending Momentmentioning

confidence: 95%

“…To measure the shear strength of the composite structure, a direct shear test was performed in the previous study [1]. The test result indicated shear strength of 2.55 N/mm 2 ; the strength was almost equal to 285 % of strength of conventional composite member using headed studs.…”

Section: Shear Strength Between Bottom Steel Plate and Concretementioning

confidence: 99%

“…In addition, the shear connector is a possible cause of concrete cracking at early age because it restricts the volume change of concrete. A simplified composite slab using a special adhesive, which consists of cementitious material and emulsion emulsion, has been developed in our previous study [1] to solve the problem in bridge deck construction. The proposed system shown in Fig.1b connecting structure using the rib and the adhesive has 3 times higher strength than conventional composite structure.…”

Section: Introductionmentioning

confidence: 99%

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Design Concept of Steel-Concrete Composite Slab Using an Adhesive

Ogawa¹,

Yoshitake²,

Watada³

et al. 2012

IABSE Congress Reports

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A steel-concrete composite slab using an adhesive has been developed in our previous study. The composite system may be designed simply and provide economical advantage compared with conventional systems having mechanical shear connectors. This paper describes a design method for the composite slab conforming to Japanese design code. Effectiveness of the system is discussed from an economic point of view. By employing the composite system, the construction cost of bridge deck can be decreased to 86-94 % of the cost of conventional system.

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“…The paper presents the designed stress of each material as below: I) at concreting Unit bending moment (M d1 ) due to the dead load are given in Eq. (1).…”

Section: Bending Momentmentioning

confidence: 95%

Section: Shear Strength Between Bottom Steel Plate and Concretementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Design Concept of Steel-Concrete Composite Slab Using an Adhesive

Ogawa¹,

Yoshitake²,

Watada³

et al. 2012

IABSE Congress Reports

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“…The adhesive has been used in various structures as rust preventive materials. The previous study reports the composite beam using the adhesive had sufficient load carrying capacity [1] and fatigue durability [2], [3]. Herein, it should be noted that the adhesive needs an appropriate curing term before casting of concrete.…”

Section: Introductionmentioning

confidence: 99%

“…Herein, it should be noted that the adhesive needs an appropriate curing term before casting of concrete. According to the previous report [1], the steel substrate sprayed with the adhesive was cured for 2 weeks. However, the curing period was not discussed sufficiently.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Curing Period of Cementitious Adhesive and Performance of Rust Prevention

Mimura¹,

Vimonsatit²,

Yoshitake³

2018

GEOMATE

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A steel-concrete composite structure needs generally mechanical shear connectors such as headed studs to ensure efficient load resistances. As an alternative to shear studs, a type of cementitious adhesives has been developed to connect a steel-concrete composite structure. The unique feature of this adhesive is the improved bond performance with fresh concrete which depends on the curing age of the adhesive. This paper presents the outcome of fifteen flexural tests of elemental steel-concrete composite beams with various curing ages of the adhesive to investigate the appropriate curing period. Shot blasting steel plate and the un-shot blasting steel plate were prepared to examine the bond performance from the surface condition of the steel plate. The result of the flexural tests indicates that the bond performance between the steel plate and the concrete is optimum when the curing periods are 7 -14 days. The tests with longer curing age produce similar bond performances with the tests at 7 days. Use of steel plate without shot blasting may be undesirable for the composite structure using the adhesive. In addition to the flexural tests, 8 deformed bars with and without adhesive coating were exposed to a field condition to investigate the rust preventive performance of the adhesive. The deformed bars without the adhesive had already corroded at 5 days after exposure. The observation showed the deformed bar with the adhesive was hardly deteriorated after 200 days.

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