摘要
研究了羟丙基甲基纤维素醚改性砂浆在4种不同养护方式下的力学性能,硬化砂浆体积密度和含水率。试验结果表明:在相对干燥的养护环境下,纤维素醚掺量为0.10%的砂浆28 d强度可以超过未掺加纤维素醚的砂浆;养护条件对不掺纤维素醚的砂浆28 d强度影响较大,但对掺加纤维素醚的砂浆影响相对较小。此外,养护方式对硬化砂浆体积密度影响不大,但对含水率有很大影响。
Study the mechanical properties of mortar modified by hydroxypropyl methyl cellulose ethers,volume density of hardened mortar and water ratio in four different curing conditions.The experimental results show that under the relatively dry curing conditions,strength of mortar with dosage of 0.10% cellulose ethers can exceed the ones without cellulose ethers.The influence of curing conditions on 28 day strength of the mortar mixed with cellulose ether is relatively greater,but the influence on the ones without cellulose ether is relatively smaller.In addition,curing conditions have little affects on volume density of hardened mortar but have a great affects on water ratio.
出处
《混凝土》
CAS
CSCD
北大核心
2010年第12期105-106,124,共3页
Concrete
关键词
养护条件
纤维素醚
砂浆
抗压强度
curing condition
cellulose ether
mortar
compressive strength
