scholarly journals Mechanical properties of mortar produced with the replacement of natural sand by scheelite residue

Cerâmica ◽  
2019 ◽  
Vol 65 (375) ◽  
pp. 443-451 ◽  
Author(s):  
B. A. Medeiros ◽  
G. A. Neves ◽  
N. P. Barbosa ◽  
R. R. Menezes ◽  
H. C. Ferreira

Abstract The residue generated by industrial activities represents a cost, since the generators are responsible for its management, transportation, treatment and disposal. Rio Grande do Norte State in Brazil is the greatest producer of scheelite residue. The aim of this research was to characterize this mining residue, identify its similarity with natural sand and produce a coating mortar with it. In the composition of mortar, a Brazilian Portland cement type CPII-F32 and an industrialized calcium hydroxide as a binder were used. Laser granulometry, bulk and relative density, EDX, XRD and thermal analysis were done to obtain a physical and chemical characterization of the residue. Mechanical tests (tensile bond strength and compressive strength), SEM and water absorption test were done to analyze the behavior of mortar. All tests confirmed that mechanical properties were according to standards for tile mortar.

2016 ◽  
Vol 881 ◽  
pp. 331-335
Author(s):  
Wilson Acchar ◽  
Joao B. Duarte ◽  
Vamberto Monteiro Silva

The concept of sustainable construction throughout the building life cycle has motivated several studies on the application of waste to replace partially or totally some materials such as aggregates. This study evaluated the feasibility of stone dust use, replacing the natural sand in the production of structural concrete. In the initial stage it was carried out physical and chemical characterization of the applied materials and then molded cylindrical specimens with FCK 20, 25 and 30 MPa at 28 days, in compositions at levels of 10% stone powder, 30%, 50%, 100% e 100% with additive. After curing they were subjected to compressive strength tests and mechanical tests showed that the composition with 10% presented promising results.


1969 ◽  
Vol 244 (15) ◽  
pp. 4128-4135
Author(s):  
R T Acton ◽  
J C Bennett ◽  
E E Evans ◽  
R E Schrohenloher

2007 ◽  
Vol 4 (sup1) ◽  
pp. 209-216 ◽  
Author(s):  
Robert F. Herrick ◽  
Michael D. McClean ◽  
John D. Meeker ◽  
Leonard Zwack ◽  
Kevin Hanley

2018 ◽  
Author(s):  
Danar Praseptiangga ◽  
Anisha Ayuning Tryas ◽  
Dian Rachmawanti Affandi ◽  
Windi Atmaka ◽  
Achmad Ridwan Ariyantoro ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document