Mechanical properties research of high-performance concrete admixtures on the cement mortar
Abstract：A new type of admixtures on mortar strength was researched with mixed-level orthogonal table.Mixing a few different factors and levels of additives to form a new group of 16 specimens of cement mortar,and testing 3 d and 28 d strength of these prism specimens,then using orthogonal design analysis of variance test methods such as error analysis researched the influence of high-performance concrete admixtures on the cement mortar strength.The results showed that high-performance concrete admixtures are not the most perfect additives.Without reducing water consumption,high performance concrete admixtures with the same quality of cement replacement,the admixtures on the strength of the effect is not significant factors.In the dosage less case,the improvement is not obvious on the strength of concrete,and mixed with excessive can cause retardation.Admixture of polycarboxylate superplasticizer increases the strength.There was an interaction between high-performance concrete admixtures and water reducing agent.
Keywords：high-performance concrete admixturesmine constructionorthogonal design
Publication Date：2011-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 719-723 )