- 何錦華,冉千平,費治華
2008年第1期
摘要
引用本文
摘 要:通過試驗,研究了不同外加劑對免振搗自密實混凝土收縮變形的影響。結果表明,摻入減縮抗裂型超塑化劑(JM-PCAⅣ)可以有效減少免振搗自密實混凝土的凝縮、早期收縮、干燥收縮及自收縮變形。
Abstract: The influences of different type of chamical admixtures on contracted deformations of free-vibration and self-compacted concrete are studied by testing. The rezults show that, it is able to effectively reduce the contractional deformation, including the setting contracts, early age contracts, dry shrinbage and self-shrinkege, when the superplasticizer of JM-PCA(Ⅳ), a type of reduced contraction and anti-cracking admixture, is added.