|
Title |
The Strength and Drying Shrinkage Properties of Alkali-Activated Slag Mortars as the Particle Size of Blended Fine Aggregate
|
|
DOI |
http://dx.doi.org/10.4334/JKCI.2015.27.3.273 |
|
Keywords |
강모래 ; 규사 ; 알칼리-활성화 슬래그 시멘트 ; 조립률 ; 표면적 ; 혼합 모래 river sand ; silica sand ; alkali-activated slag cement ; fineness modulus ; relative surface area ; blended sand |
|
Abstract |
In this paper, the performance of alkali-activated slag cement (AASC) is assessed in terms of compressive strength and drying shrinkage, using three different types of silica sand and river sand. The sand type has an important influence on the properties of AASC mortar. Three silica sands (SS1, SS2 and SS3) and river sand (RS) were considered. Three series of blended sands have been tested. A first series (S1) with RS and SS1, a second series (S2) with RS and SS2 and third series (S3) with RS and SS3 with a different blended ratios. The result shows a very significant influence of the blended sand on the AASC mortar properties. The compressive strength and drying shrinkage related with the particle sizes and blended ratios of sands are investigated considering blended sand properties like fineness modulus (FM) and relative specific surface. The type and blended ratio of sand seems to have very significant and important consequences for the mix design of the AASC mortar.
|