Search results for: Takafumi Noguchi

Items from 1 to 20 out of 44 results

article

Featured Cover

Xukun Sun, Hideki Yoshioka, Takafumi Noguchi, Yuhei Nishio, more

The cover image is based on the Research Article Large eddy simulations fire modeling of JIS A 1310 façade calibration test with respect to sidewall by Xukun Sun et al., https://doi.org/10.1002/fam.3192.

article

Large eddy simulations fire modeling of JIS A 1310 façade calibration test with respect to sidewall

Xukun Sun, Hideki Yoshioka, Takafumi Noguchi, Yuhei Nishio, more

Fire and Materials > 48 > 4 > 411 - 425

The full‐scale façade standard test is widely employed as a comprehensive method to assess the façade fire spread. Within this approach, the calibration test without combustible façade decouples the intricate interaction between gas‐phase combustion and material pyrolysis, which simplifies diagnostics and provides an ideal scenario for model validation. This paper presents large eddy simulations (LES)...

article

A novel strength prediction model of mortars with different types of cement and SCMs

Bochao Sun, Weijian Zhao, Gaochuang Cai, Takafumi Noguchi, more

Structural Concrete > 23 > 2 > 1214 - 1225

Based on fib Model Code 2010, a time‐dependent strength prediction model was improved by reconsidering the coefficient s for the cementitious materials with different types of cement and mix proportions. The relationship between s and mineral composition was investigated experimentally. The results indicate that the values of s show an approximately linear decreasing tendency with the C₃S + C₃A content...

article

Numerical and experimental study of cedar façade fire

Biao Zhou, Hideki Yoshioka, Manabu Kanematsu, Takafumi Noguchi

Fire and Materials > 46 > 2 > 476 - 486

This article presents a large eddy simulation and experimental study of cedar façade behavior exposed to a 900 kW window spilled flame. The experiments used for validation were carried out in the Building Research of Institute of Japan in Tsukuba according to JIS A 1310 method. The compartment fire was modeled by using the modified eddy dissipation model with a diffusion mixing time scale for the...

article

Development of a new intermediate‐scale box test on sandwich panel products compared with ISO 13784‐1 room test and EN 13501‐1 classification system

Hideki Yoshioka, Takafumi Noguchi, Kyoichi Kobayashi, Manabu Kanematsu, more

Fire and Materials > 45 > 8 > 1025 - 1034

With respect to the reaction to fire performance of sandwich panel products, in ISO/TC92/SC1/WG7 “Large and intermediate scale fire test methods,” ISO 13784‐1 “Reaction to fire test for sandwich panel building systems—Part 1: Small room test” is specified as a method of test for determining the reaction to fire behavior of sandwich panel building systems. On the other hand, according to EN 13501‐1...

article

Featured Cover

Hideki Yoshioka, Takafumi Noguchi, Kyoichi Kobayashi, Manabu Kanematsu, more

Fire and Materials > 45 > 8 > i - i

The cover image is based on the Original Article Development of a New Intermediate‐scale Box Test on Sandwich Panel Products Compared with ISO 13784‐1 Room Test and EN 13501‐1 Classification System by Hideki Yoshioka et al., https://doi.org/10.1002/fam.2984.

article

Experimental study on vertical temperature profile of EPS external thermal insulation composite systems masonery façade fire according to JIS A 1310 method

Biao Zhou, Hideki Yoshioka, Takafumi Noguchi, Kai Wang

Fire and Materials > 45 > 5 > 648 - 662

Thermoplastic Expanded Polystyrene (EPS) External Thermal Insulation Composite Systems (ETICS) has caused serious results due to the ravages of frequent fire disasters. The fire propagation over EPS ETICS surface was observed to be very fast. High temperature threatens the safety of exterior building wall. However, vertical temperature distribution of EPS ETICS façade fire (without cavity) is not...

article

Prediction of early compressive strength of mortars at different curing temperature and relative humidity by a modified maturity method

Bochao Sun, Takafumi Noguchi, Gaochuang Cai, Qingkai Chen

Structural Concrete > 22 > S1 > E732 - E744

This paper presents an experimental and modeling study on the influence of curing temperature (T) and relative humidity (RH) on the development of early‐age compressive strength of cement mortars. By introducing an RH factor γ_RH into the age conversion factor of concrete, a modified maturity function was proposed considering both effects of T and RH on the mechanical properties of mortars. Test results...

article

Experimental study of time‐averaged upward fire propagation speed of expanded polystyrene external thermal insulation composite systems masonery façade

Biao Zhou, Hideki Yoshioka, Takafumi Noguchi, Kai Wang

Fire and Materials > 45 > 2 > 193 - 204

Thermoplastic expanded polystyrene (EPS) external thermal insulation composite systems (ETICS) have caused serious results due to the ravages of frequent fire disasters in the world. Fire propagation of EPS ETICS was observed to be fast over exterior building wall, however, very few reports of time‐averaged fire propagation speed (FPS) is available currently. To have a quantitative understanding of...

article

Additional Cover

Biao Zhou, Hideki Yoshioka, Takafumi Noguchi, Kai Wang

Fire and Materials > 45 > 2 > ii - ii

The back cover image is based on the Research Article Experimental study of time‐averaged upward fire propagation speed of expanded polystyrene external thermal insulation composite systems masonery façade by Biao Zhou et al., https://doi.org/10.1002/fam.2923

article

Experimental study on vertical temperature profile of buoyant window spill plume from intermediate‐scale compartments

Biao Zhou, Hideki Yoshioka, Takafumi Noguchi, Tatsuo Ando

Fire and Materials > 44 > 4 > 516 - 529

The correlation between dimensionless temperature and vertical position z were discussed by conducting a series of intermediate‐scale tests performed a 1.35 m (L) × 1.35 m (H) × 1.35 m (W) fire compartment, whose window‐opening size varied from 0.91 m (H) × 0.41 m (W) to 0.91 m (H) × 0.91 m (W) and heat release rate (HRR) differed from 200 to 1000 kW. The effects of fire plume reattaching‐to‐wall...

article

Numerical prediction of mass loss rate of expanded polystyrene (EPS) used for external thermal insulation composite systems (ETICS) in cone calorimeter

Biao Zhou, Hideki Yoshioka, Takafumi Noguchi, Tatsuo Ando

Fire and Materials > 42 > 5 > 517 - 526

External thermal insulation composite systems (ETICS) consisting of insulation core and decorative surface materials are quite common in new construction and refurbishment buildings. Expanded polystyrene (EPS) ETICS are widely used. EPS ETICS consist of 3 distinct layers of varying composition and physical structure. The mass loss rate (MLR) and heat release rate play an important role in the evaluation...

article

Effects of opening edge treatment and EPS thickness on EPS external thermal insulation composite systems (ETICS) façade reaction‐to‐fire performance based on JIS A1310 standard façade fire test method

Biao Zhou, Hideki Yoshioka, Takafumi Noguchi, Tatsuo Ando

Fire and Materials > 42 > 5 > 537 - 548

External thermal insulation composite systems (ETICS) are quite common in constructions. However, the combustible insulation core induces serious fire disasters, especially considering thermoplastic expanded polystyrene (EPS) has been widely used as insulation core. Most of EPS ETICS building fire is caused by window spreading fire. The window opening edge treatment plays an important role in EPS...

article

Effect of titanium dioxide particles on the surface morphology and the mechanical properties of PVC composites during QUV accelerated weathering

Teng‐Chun Yang, Takafumi Noguchi, Minoru Isshiki, Jyh‐Horng Wu

Polymer Composites > 37 > 12 > 3391 - 3397

In this study, QUV accelerated weathering of polyvinyl chloride (PVC) composites with different amounts of titanium dioxide (TiO₂) particle was conducted to investigate the effect of TiO₂ particle on the surface morphology and the mechanical properties. The results indicate that the surface morphology of PVC without TiO₂ particle did not exhibit changes up to 960 h, but exhibited a rough and brittle...

chapter

Resource Recycling in Concrete: Present and Future

Takafumi Noguchi

cSUR-UT Series: Library for Sustainable Urban Regeneration > Stock Management for Sustainable Urban Regeneration > 255-274

According to a White Paper on the Environment (Ministry of the Environment (2003)), the total material input of Japan ranged from 2.0 to 2.2 billion tons annually in recent years, of which 1.0 to 1.1 billion tons (50 percent) were accumulated every year in the form of buildings and civil structures as shown in Fig. 13–1(a), which indicates the enormous consumption of resources by the construction...

article

Evaluation of Bond Properties of Reinforced Concrete with Corroded Reinforcement by Uniaxial Tension Testing

Hyung-Rae Kim, Won-Chang Choi, Sang-Chun Yoon, Takafumi Noguchi

International Journal of Concrete Structures and Materials > 2016 > 10 > 3 > 43-52

The degradation of the load-bearing capacity of reinforced concrete beams due to corrosion has a profoundly negative impact on the structural safety and integrity of a structure. The literature is limited with regard to models of bond characteristics that relate to the reinforcement corrosion percentage. In this study, uniaxial tensile tests were conducted on specimens with irregular corrosion of...

article

Manufacturing of sintered lightweight aggregate using high-carbon fly ash and its effect on the mechanical properties and microstructure of concrete

Tommy Yiu Lo, Hongzhi Cui, Shazim Ali Memon, Takafumi Noguchi

Journal of Cleaner Production > 2016 > 112 > Part 1 > 753-762

Fly ash is the largest source of industrial solid waste in China. Fly ash with its high content of unburned carbon has to be discarded in landfills and cause environmental problem. To reduce the environmental impacts, lightweight aggregate (LWA) was manufactured utilizing high-carbon fly ash (HCFA) (loss on ignition, LOI = ∼16.3%). Trial tests were conducted on high-carbon fly ash lightweight aggregate...

article

Fire Spread Caused by Combustible Facades in Japan

Yuhei Nishio, Hideki Yoshioka, Takafumi Noguchi, Manabu Kanematsu, more

Fire Technology > 2016 > 52 > 4 > 1081-1106

With regard to fire safety for exterior walls of a building, fire-resistance performance is considered, according to the current building standard law of Japan. And it was revealed that the fire safety is not specifically regulated from the viewpoint of reaction-to-fire performance, such as fire propagation caused by combustible materials or products which are installed on the exterior side of fire-resistant...

article

Evaluation on the Mechanical Performance of Low-Quality Recycled Aggregate Through Interface Enhancement Between Cement Matrix and Coarse Aggregate by Surface Modification Technology

Heesup Choi, Hyeonggil Choi, Myungkwan Lim, Masumi Inoue, more

International Journal of Concrete Structures and Materials > 2016 > 10 > 1 > 87-97

In this study, a quantitative review was performed on the mechanical performance, permeation resistance of concrete, and durability of surface-modified coarse aggregates (SMCA) produced using low-quality recycled coarse aggregates, the surface of which was modified using a fine inorganic powder. The shear bond strength was first measured experimentally and the interface between the SMCA and the cement...

article

Volcano-related materials in concretes: a comprehensive review

Gaochuang Cai, Takafumi Noguchi, Hervé Degée, Jun Zhao, more

Environmental Science and Pollution Research > 2016 > 23 > 8 > 7220-7243

Massive volcano-related materials (VRMs) erupted from volcanoes bring the impacts to natural environment and humanity health worldwide, which include generally volcanic ash (VA), volcanic pumice (VP), volcanic tuff (VT), etc. Considering the pozzolanic activities and mechanical characters of these materials, civil engineers propose to use them in low carbon/cement and environment-friendly concrete...

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INFONA - science communication portal

Search results for: Takafumi Noguchi

Featured Cover

Large eddy simulations fire modeling of JIS A 1310 façade calibration test with respect to sidewall

A novel strength prediction model of mortars with different types of cement and SCMs

Numerical and experimental study of cedar façade fire

Development of a new intermediate‐scale box test on sandwich panel products compared with ISO 13784‐1 room test and EN 13501‐1 classification system

Featured Cover

Experimental study on vertical temperature profile of EPS external thermal insulation composite systems masonery façade fire according to JIS A 1310 method

Prediction of early compressive strength of mortars at different curing temperature and relative humidity by a modified maturity method

Experimental study of time‐averaged upward fire propagation speed of expanded polystyrene external thermal insulation composite systems masonery façade

Additional Cover

Experimental study on vertical temperature profile of buoyant window spill plume from intermediate‐scale compartments

Numerical prediction of mass loss rate of expanded polystyrene (EPS) used for external thermal insulation composite systems (ETICS) in cone calorimeter

Effects of opening edge treatment and EPS thickness on EPS external thermal insulation composite systems (ETICS) façade reaction‐to‐fire performance based on JIS A1310 standard façade fire test method

Effect of titanium dioxide particles on the surface morphology and the mechanical properties of PVC composites during QUV accelerated weathering

Resource Recycling in Concrete: Present and Future

Evaluation of Bond Properties of Reinforced Concrete with Corroded Reinforcement by Uniaxial Tension Testing

Manufacturing of sintered lightweight aggregate using high-carbon fly ash and its effect on the mechanical properties and microstructure of concrete

Fire Spread Caused by Combustible Facades in Japan

Evaluation on the Mechanical Performance of Low-Quality Recycled Aggregate Through Interface Enhancement Between Cement Matrix and Coarse Aggregate by Surface Modification Technology

Volcano-related materials in concretes: a comprehensive review

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