TY - JOUR
T1 - The influence of untreated sugarcane bagasse ash on the microstructural and mechanical properties of mortars
AU - Maldonado-García, M. A.
AU - Hernández-Toledo, U. I.
AU - Montes-García, P.
AU - Valdez-Tamez, P. L.
N1 - Publisher Copyright:
© 2018 CSIC.
PY - 2018/1/1
Y1 - 2018/1/1
N2 - This study investigated the effects of the addition of untreated sugarcane bagasse ash (UtSCBA) on the microstructural and mechanical properties of mortars. The SCBA was sieved for only five minutes through a No. 200 ASTM mesh, and fully characterized by chemical composition analysis, laser ray diffraction, the physical absorption of gas, scanning electron microscopy (SEM) and X-ray diffraction (XRD) techniques. Mortar mixtures with 0, 10 and 20% UtSCBA as cement replacement and a constant 0.63 water/cementitious material ratio were prepared. Fresh properties of the mortars were obtained. The microstructural characteristics of the mortars at 1, 7, 28, 90 and 600 days were evaluated by SEM and XRD. The compressive strengths of the mortars at the same ages were then obtained. The results show that the addition of 10 and 20% UtSCBA caused a slight decrease in workability of the mortars but improved their microstructure, increasing the long-term compressive strength.
AB - This study investigated the effects of the addition of untreated sugarcane bagasse ash (UtSCBA) on the microstructural and mechanical properties of mortars. The SCBA was sieved for only five minutes through a No. 200 ASTM mesh, and fully characterized by chemical composition analysis, laser ray diffraction, the physical absorption of gas, scanning electron microscopy (SEM) and X-ray diffraction (XRD) techniques. Mortar mixtures with 0, 10 and 20% UtSCBA as cement replacement and a constant 0.63 water/cementitious material ratio were prepared. Fresh properties of the mortars were obtained. The microstructural characteristics of the mortars at 1, 7, 28, 90 and 600 days were evaluated by SEM and XRD. The compressive strengths of the mortars at the same ages were then obtained. The results show that the addition of 10 and 20% UtSCBA caused a slight decrease in workability of the mortars but improved their microstructure, increasing the long-term compressive strength.
KW - Compressive strength
KW - Hydration products
KW - Mortar
KW - Pozzolan
KW - Waste treatment
UR - http://www.scopus.com/inward/record.url?scp=85043504546&partnerID=8YFLogxK
U2 - 10.3989/mc.2018.13716
DO - 10.3989/mc.2018.13716
M3 - Artículo
SN - 0465-2746
VL - 68
JO - Materiales de Construccion
JF - Materiales de Construccion
IS - 329
M1 - e148
ER -