Zobrazeno 1 - 10
of 221
pro vyhledávání: '"Isamu Yoshitake"'
Publikováno v:
Case Studies in Construction Materials, Vol 18, Iss , Pp e02029- (2023)
An internal strengthening system involving the embedding of a post-tensioned prestressing tendon in a wedge-shaped anchorage of an existing concrete member was developed previously. The previous study confirmed the adequate load capacity of the prest
Externí odkaz:
https://doaj.org/article/4eec8485d4c24d85bbc7899a1a2d1ebf
Publikováno v:
International Journal of Concrete Structures and Materials, Vol 14, Iss 1, Pp 1-11 (2020)
Abstract In regions where the concrete structures are exposed to a salty environment, the concrete requires high resistance to chloride-ion penetration. To achieve higher resistance against chloride ingress, a pozzolanic admixture incorporating a hig
Externí odkaz:
https://doaj.org/article/c97fb3bb20a84fa8bc8f33d2fb893395
Publikováno v:
Buildings, Vol 12, Iss 6, p 740 (2022)
Ultra-high-performance fibre-reinforced concrete (UHPFRC) manufacturing typically requires heat curing. UHPFRC production at a ready-mixed concrete (RMC) plant is often difficult because specific equipment is required for heat curing. Concerns associ
Externí odkaz:
https://doaj.org/article/d340bc1664ee482f836ab5aeeb2b98e4
Publikováno v:
Case Studies in Construction Materials, Vol 8, Iss , Pp 116-130 (2018)
A measurement and quantification system for concrete bugholes (surface air voids) on sidewalls was developed to quantify the surface quality of tunnel-lining concrete. The developed system uses and evaluates red/green/blue values of color images take
Externí odkaz:
https://doaj.org/article/04743696d2164394adf7b20b216d180c
Publikováno v:
Polymers, Vol 7, Iss 11, Pp 2332-2343 (2015)
This paper presents the residual behavior of wide-flange steel beams strengthened with high-modulus carbon fiber-reinforced polymer (CFRP) laminates subjected to thermal loading. Because the coefficients of thermal expansion of the steel and the CFRP
Externí odkaz:
https://doaj.org/article/4f38eba4384f4eeeaaac7cd2f5b871c3
Publikováno v:
Materials, Vol 8, Iss 8, Pp 5479-5489 (2015)
Recyclable concrete pavement was made from fly ash and crushed limestone sand and gravel as aggregates so that the concrete pavement could be recycled to raw materials for cement production. With the aim to use as much fly ash as possible for the sus
Externí odkaz:
https://doaj.org/article/def83fc21db94e148584953873442d84
Publikováno v:
Advances in Civil Engineering, Vol 2017 (2017)
Bricks of low elastic modulus are occasionally used in some developing countries, such as Indonesia and India. Most of the previous research efforts focused on masonry structures built with bricks of considerably high elastic modulus. The objective o
Externí odkaz:
https://doaj.org/article/1b06aabee5f64f6caa86aec055431ba6
Publikováno v:
Materials, Vol 4, Iss 8, Pp 1345-1359 (2011)
The present study aims to obtain the tensile properties of early age concrete based on a uniaxial tension test employing RC slender members. First, the paper shows that concrete strain is equal to the strain of rebar at the mid-span of the RC member.
Externí odkaz:
https://doaj.org/article/027a7b4359d144e5b39cb5cb234d1e93
Publikováno v:
Advances in Civil Engineering, Vol 2012 (2012)
Knowledge of the tensile Young's modulus of concrete at early ages is important for estimating the risk of cracking due to restrained shrinkage and thermal contraction. However, most often, the tensile modulus is considered equal to the compressive m
Externí odkaz:
https://doaj.org/article/03f28a7f8b784728b8b1475edbfef614
Publikováno v:
International Journal of GEOMATE; Jun2024, Vol. 26 Issue 118, p41-48, 8p