A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Microstructure analysis of hydraulic concrete using crushed basalt, crushed gneiss and alluvial sand as fine aggregate
This paper presents an experimental study of the microstructure of concrete using crushed sands and river sand. Three sands with different geological nature have been investigated in this work. Sand from crushed basalt (SB), sand from crushed gneiss (SG) and sand from river Sanaga (SS) were used for the formulation of these concretes. The results of the analysis show that concrete made from alluvial sand (BSS) has very good compressive strength (33.72 MPa at 28 days) followed by concrete made with crushed basalt (BSB), (33.59 MPa at 28 days) and finally concrete made from crushed gneiss (BSG) (29.83 MPa at 28 days). The same result is also obtained with splitting strength. X-ray diffraction (XRD), enthalpy thermal analysis (HDSC) and thermogravimetric analysis (TAG) were also used to identify physical, chemical and mineralogical behavior of microstructure of various concrete. From the XRD analysis, it was noted that crushed sand gneiss (BSG) contain biotite and amphibole which could justify its poor compressive strength of BSG concrete. Enthalpy thermal analysis (HDSC) and thermogravimetric analysis (TAG) reveal that all concrete could be used in the structure at elevated temperature.
Microstructure analysis of hydraulic concrete using crushed basalt, crushed gneiss and alluvial sand as fine aggregate
This paper presents an experimental study of the microstructure of concrete using crushed sands and river sand. Three sands with different geological nature have been investigated in this work. Sand from crushed basalt (SB), sand from crushed gneiss (SG) and sand from river Sanaga (SS) were used for the formulation of these concretes. The results of the analysis show that concrete made from alluvial sand (BSS) has very good compressive strength (33.72 MPa at 28 days) followed by concrete made with crushed basalt (BSB), (33.59 MPa at 28 days) and finally concrete made from crushed gneiss (BSG) (29.83 MPa at 28 days). The same result is also obtained with splitting strength. X-ray diffraction (XRD), enthalpy thermal analysis (HDSC) and thermogravimetric analysis (TAG) were also used to identify physical, chemical and mineralogical behavior of microstructure of various concrete. From the XRD analysis, it was noted that crushed sand gneiss (BSG) contain biotite and amphibole which could justify its poor compressive strength of BSG concrete. Enthalpy thermal analysis (HDSC) and thermogravimetric analysis (TAG) reveal that all concrete could be used in the structure at elevated temperature.
Microstructure analysis of hydraulic concrete using crushed basalt, crushed gneiss and alluvial sand as fine aggregate
JMST Adv.
Tchapga Gnamsi, Guy Molay (author) / Mambou Ngueyep, Luc Leroy (author) / Foguieng Wembe, Marius (author) / Ndjaka, Jean-Marie Bienvenu (author)
JMST Advances ; 2 ; 25-35
2020-06-01
11 pages
Article (Journal)
Electronic Resource
English
Crushed Fine Aggregate for Concrete Production
| British Library Conference Proceedings | 2014
Concrete with crushed aggregate
| UB Braunschweig | 1981
Durability of high performance concrete using crushed sandstone sand as fine aggregate
| British Library Conference Proceedings | 2006
Influence of Crushed Basalt Aggregate on Crack Resistance of Concrete
| Trans Tech Publications | 2012
Concrete with crushed aggregate
| TIBKAT | 1981