A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PREDICTION METHOD OF COMPRESSION STRENGTH OF HIGH STRENGTH CONCRETE
PROBLEM TO BE SOLVED: To provide a compression high strength prediction method and s blend design method thereof capable of precisely predicting compression strength in steam curing.SOLUTION: A prediction method of the compression strength of high strength concrete for performing steam curing is configured to predict the compression strength (ft) by establishing coefficients a and b in a range of 45≤a≤65 and 0.25≤b≤0.85 in the case that an effective material age is equal to or less than 5 days and the coefficients a and b in the range of 65≤a≤150 and 0.01≤b≤0.15 in the case that the effective material age is equal to or more than 5 days in the following formula showing the compression strength (ft) in the effective material age t (day) that converts steam curing into standard curing of 20°C: ft=a×t+c...[1] (in the formula, a is a manifested strength function, tis a material age function based on the effective age, b is a function of the material age coefficient, and c is a correction function determined by a type of a bone material).SELECTED DRAWING: Figure 4
【課題】蒸気養生時の圧縮強度を精度良く予測することができる圧縮強度予測方法とその配合設計方法を提供する【解決手段】蒸気養生を行う高強度コンクリートの圧縮強度の予測方法であって、蒸気養生を２０℃標準養生に換算した有効材齢ｔ(日)における圧縮強度(ｆｔ)を示す次式において、ｆｔ = ａ×ｔｂ＋ｃ・・・〔１〕（式中、ａは強度発現係数、ｔｂは有効材齢に基づく材齢関数、ｂは材齢関数の係数、ｃは骨材種類に拠り決定される補正係数）有効材齢５日未満は４５≦ａ≦６５および０.２５≦ｂ≦０.８５、有効材齢５日以上は６５≦ａ≦１５０および０.０１≦ｂ≦０.１５の範囲で係数ａ、ｂを定めて圧縮強度(ｆｔ)を予測することを特徴とする高強度コンクリートの圧縮強度予測方法。【選択図】図４
PREDICTION METHOD OF COMPRESSION STRENGTH OF HIGH STRENGTH CONCRETE
PROBLEM TO BE SOLVED: To provide a compression high strength prediction method and s blend design method thereof capable of precisely predicting compression strength in steam curing.SOLUTION: A prediction method of the compression strength of high strength concrete for performing steam curing is configured to predict the compression strength (ft) by establishing coefficients a and b in a range of 45≤a≤65 and 0.25≤b≤0.85 in the case that an effective material age is equal to or less than 5 days and the coefficients a and b in the range of 65≤a≤150 and 0.01≤b≤0.15 in the case that the effective material age is equal to or more than 5 days in the following formula showing the compression strength (ft) in the effective material age t (day) that converts steam curing into standard curing of 20°C: ft=a×t+c...[1] (in the formula, a is a manifested strength function, tis a material age function based on the effective age, b is a function of the material age coefficient, and c is a correction function determined by a type of a bone material).SELECTED DRAWING: Figure 4
【課題】蒸気養生時の圧縮強度を精度良く予測することができる圧縮強度予測方法とその配合設計方法を提供する【解決手段】蒸気養生を行う高強度コンクリートの圧縮強度の予測方法であって、蒸気養生を２０℃標準養生に換算した有効材齢ｔ(日)における圧縮強度(ｆｔ)を示す次式において、ｆｔ = ａ×ｔｂ＋ｃ・・・〔１〕（式中、ａは強度発現係数、ｔｂは有効材齢に基づく材齢関数、ｂは材齢関数の係数、ｃは骨材種類に拠り決定される補正係数）有効材齢５日未満は４５≦ａ≦６５および０.２５≦ｂ≦０.８５、有効材齢５日以上は６５≦ａ≦１５０および０.０１≦ｂ≦０.１５の範囲で係数ａ、ｂを定めて圧縮強度(ｆｔ)を予測することを特徴とする高強度コンクリートの圧縮強度予測方法。【選択図】図４
PREDICTION METHOD OF COMPRESSION STRENGTH OF HIGH STRENGTH CONCRETE
高強度コンクリートの圧縮強度の予測方法および配合設計方法
SHIRAHAMA NORIE (author) / KUROIWA YOSHITO (author) / KIMURA YOHEI (author)
2018-08-16
Patent
Electronic Resource
Japanese
Fiber High-Strength Concrete under Compression
| British Library Online Contents | 1994
Compression strength of concrete
| Engineering Index Backfile | 1968
High-Strength Concrete Subjected to Triaxial Compression
| British Library Online Contents | 1998
High-Strength Concrete Subjected to Triaxial Compression
| Online Contents | 1998