A Comparative Study of Concrete Strength Using Metamorphic, Igneous, and Sedimentary Rocks (Crushed Gneiss, Crushed Basalt, Alluvial Sand) as Fine Aggregate

Leroy, Mambou Ngueyep Luc; Molay, Tchapga Gniamsi Guy; Ndop, J.; Colince, Fofe Meli; Bienvenu, Ndjaka Jean Marie

doi:10.4172/2168-9717.1000191

Cited by 3 publications

(6 citation statements)

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“…Except for the Wouri sand, the density of all the sands is higher than the minimum threshold of 2.6 g/cm 3 prescribed by the ASTM C118 standard [31]. Tese results are similar to those of Luc Leroy et al [4] who used Basalt sands of 2.87 g/cm 3 and river sands of 2.60 g/cm 3 . However, they diverge from those of Gupta and Vyas [7] who used river sands denser (2.65 g/cm 3 ) than granite powder (2.46 g/cm 3 ) probably due to the granularity.…”

Section: Absolute Density and Bulk Density Tablesupporting

confidence: 75%

“…Its implementation depends on the setting time, which is the time it takes for the cement matrix in general and the mortar in particular to support the loads induced by its weight without deformation [3]. Te mechanical behavior of mortars depends strongly on their microstructure, the quality of the matrix-aggregate interface, and the size, orientation, and density of the elements that constitute them [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

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Comparative Study of Mortars Made with Sands of Different Geological Origin

Yannick,

Alim,

Abdou Nasser

et al. 2023

Advances in Materials Science and Engineering

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The present work is a comparative study of sand mortars from various geological origins to highlight their influence on mortar qualities. Five different sands and the cement CEM II/B–P 42.5R were used to produce mortars with similar water/cement ratios (W/C). These are the “Sanaga” sand from the Sanaga River, the “Wouri” sand from the Wouri River, the Nyambaka basalt sand, the Meiganga granite sand, and the Leboudi gneiss sand. The physical, chemical, and mineralogical features of these sands were used to characterize and classify them. They were then used to formulate mortars, which were analyzed and compared. According to the results of the mortar setting time tests, the initial setting time ranges from 195 minutes for Sanaga sand mortar (MS04) to 210 minutes for gneiss sand mortar (MGN03), passing Wouri sand mortar (MW05) with 200 minutes, basalt sand mortar (MB01) with 198 minutes, and granite sand mortar (MGR02) with 196 minutes. The final setting time ranged from 496 minutes (MGR02) to 510 minutes (MGN03), with an average of 300 minutes added to the initial setting time. The flexural strength tests of the mortars reveal that crushed sands outperform alluvial sands. They range from 1.64 to 2.18 MPa after 2 days, 3 to 3.90 MPa after 7 days, and 7 to 14.84 MPa after 28 days. The results of the compressive strength tests show that quarry sand mortars have greater average compressive strengths than alluvial sand mortars, with basalt sand providing the greatest performance. These strengths range from 6.35 to 10.83 MPa after 2 days, 7.55 to 18.96 MPa after 7 days, and 22.81 to 34.58 MPa after 28 days, with the MB01 being the best sand. These findings reveal that the geological origin of sands, which specifies certain of their physicochemical and mineralogical attributes, has an impact on the properties of mortars. This impact is also influenced by granulometry and organic matter concentration.

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Section: Absolute Density and Bulk Density Tablesupporting

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Comparative Study of Mortars Made with Sands of Different Geological Origin

Yannick,

Alim,

Abdou Nasser

et al. 2023

Advances in Materials Science and Engineering

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“…The cement used is a Portland cement composed of CPJ CEM II/A class 42.5 R. This CIMAF's cement (Cement of Africa) is produced and marketed in Cameroon. Its physical and mechanical characteristics are given in Table1 [6].…”

Section: Cementmentioning

confidence: 99%

“…In 2017, Luc Leroy Mambou Ngueyep et al [6] made a comparative study of concrete strength using metamorphic, igneous, and sedimentary rocks (crushed gneiss, crushed basalt, alluvial sand) as fine aggregate. Their results show that it is, therefore, possible to replace river sand with quarry sands in the production of concrete and then reduce the environmental problems generated by the overconsumption of alluvial sand.…”

Section: Introductionmentioning

confidence: 99%

Microstructure analysis of hydraulic concrete using crushed basalt, crushed gneiss and alluvial sand as fine aggregate

et al. 2020

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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.

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“…This re-classification was mainly done based on the relative suitability of each lithological unit for the quarry site selection (Table 2). A massive, high cohesion and homogenous rock like basalt are most suitable for the crushed aggregate and a massive limestone also comes next to basalt (British Geological Survey [BGS], 2019; Leroy et al, 2017;Langer & Knepper, 1995). However, Detrital rocks such as; sandstone, conglomerate, and shale are soft, friable and easily disintegrate and contain heterogeneous layers (Mitchell, 2015).…”

Section: Lithologymentioning

confidence: 99%

A Gis-Ahp Based Approach for Optimization of Quarry Site Location Around Harer and Dire-Dawa Towns, Eastern Ethiopia

Gudissa

Raghuvanshi

Meten

et al. 2022

Journal of Environmental Engineering and Landscape Management

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The problem of environmental degradation and pollution resulting from quarry operations is becoming a critical problem. Therefore, the selection of optimal quarry sites is a prerequisite for safe operation and economic viability. The present study was carried out around Harer and Dire-Dawa towns to identify the optimal location of quarry sites by using an integrated AHP and GIS approaches. The selection was carried out by considering environmental and socio-economic factors. For each of the factors, appropriate classifications and criteria were formulated. Finally, a weighted overlay analysis was applied to produce the preliminary quarry site suitability map. About 136 km2 of the area is highly suitable, 1,587 km2 is moderately suitable, and 2,166 km2 has low suitability for quarry site. The approach followed by the study helped to narrow the area to the suitable sites that may further be studied through detailed field investigation. Hence, it can be adopted elsewhere as a guide for economical quarry site selection.

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A Comparative Study of Concrete Strength Using Metamorphic, Igneous, and Sedimentary Rocks (Crushed Gneiss, Crushed Basalt, Alluvial Sand) as Fine Aggregate

Cited by 3 publications

References 0 publications

Comparative Study of Mortars Made with Sands of Different Geological Origin

Comparative Study of Mortars Made with Sands of Different Geological Origin

Microstructure analysis of hydraulic concrete using crushed basalt, crushed gneiss and alluvial sand as fine aggregate

A Gis-Ahp Based Approach for Optimization of Quarry Site Location Around Harer and Dire-Dawa Towns, Eastern Ethiopia

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