@article{oai:ir.kagoshima-u.ac.jp:00002214,
 author = {久米, 国幹 and KUME, Kunimoto and 有馬, 冬樹 and ARIMA, Fuyuki and 佐伯, 貢 and SAEKI, Mitsugu},
 journal = {鹿児島大学工学部研究報告, The research reports of the Faculty of Engineering, Kagoshima University},
 month = {Sep},
 note = {On high strength concrete using normal Portland cement and high early strength Portland cement, the influence of the material and mixture factors on the mix design and the mechanical properties were investigated by the orthogonal array experimental plan of L_27(3^<13>).
The main conclusions are as follows ;
1) If a high-range AE water reducing agent is used, high strength concrete using the fine and coarse aggregates produced in Kagoshima Prefecture, which have a compressive strength from 600 to 800kgf/cm^<2> at 4 weeks for material age, can be available under the following conditions at the mix design of concrete ;
i) The water to cement ratio ranges from 30 to 40%.
ii) A slump of fresh concrete is aimed to be 5-18cm.
iii) The water content per unit volume of concrete ranges from 150 to 175kg/m^<3>
2) In the case of high strength Concrete, the difference in the characteristics of aggregate included in the concrete exerts a more significant influence upon the compressive strength and the modulus
of elasticity, especially the influence of the latter, compared with the case in the ordinary concrete.},
 pages = {107--114},
 title = {高強度コンクリートに関する研究},
 volume = {36},
 year = {1994}
}