Physical Characteristics of Some Indiana Argillaceous Carbonates Regarding Their Freeze-Thaw Resistance in Concrete

Shakoor, Abdul; West, Terry R.; Scholer, Charles F.

doi:10.2113/gseegeosci.xix.4.371

Cited by 14 publications

(11 citation statements)

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“…It is a major property in evaluating the durability of rocks as aggregates, as it has been shown that rocks with w a values greater than 3% are susceptible to freeze-thaw damage (Shakoor et al 1982).…”

Section: Physical Propertiesmentioning

confidence: 99%

The impact of petrographic characteristics on the engineering properties of ultrabasic rocks from northern and central Greece

Rigopoulos

Tsikouras

Pomonis

et al. 2012

QJEGH

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This paper investigates the influence of petrographic characteristics on the engineering properties of ultrabasic rocks from the Pindos, Vourinos and Koziakas ophiolites. The studied lithologies include dunites, olivine-rich harzburgites, typical harzburgites and plagioclase-bearing lherzolites. Quantitative petrographic analysis indicates that the samples display various percentages of secondary minerals. The peridotites are tested to determine the following engineering parameters: water absorption, apparent density, total porosity, point load index, Schmidt hammer value, aggregate abrasion value and polished stone value. The relationships between the petrographic features and the engineering parameters are determined using regression analysis. The micropetrographic index I rep and the ratios of secondary to primary (S e /P) and soft to hard (S o /H) minerals provide significant information about the impact of ocean-floor metamorphism on the strength and durability of peridotites. The correlations indicate that the formation of secondary minerals results in mechanically weaker rocks. The polished stone value is the only engineering parameter that is positively affected by the presence of low contents of alteration products. The results also imply that Cr-spinel grains are a major determinant for the preservation of the microroughness of aggregate particles owing to their very hard nature and different mechanical behaviour compared with the surrounding silicate minerals.2012-021r esearch-articleResearch Article45X10.1144/qjegh2012-021I. RigopoulosEngineering Properties of Ultrabasic Rocks 2012

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Section: Physical Propertiesmentioning

confidence: 99%

The impact of petrographic characteristics on the engineering properties of ultrabasic rocks from northern and central Greece

Rigopoulos

Tsikouras

Pomonis

et al. 2012

QJEGH

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“…Apparent and bulk density of the Creatceous limestones from Thermo show moderate to slightly high values and are within the acceptable limits of aggregates suitability (NBG 1985, Shakoor et al 1982, Cargill, 1989. Water absorption is another important factor related to durability of the materials.…”

Section: Discussionmentioning

confidence: 90%

“…Water absorption is another important factor related to durability of the materials. Experimental results have shown that rocks with water absorption values higher than 3% are vulnerable to shock changes of temperature (Shakoor et al, 1982). Samples ΑΤ9Β (1.3%), ΑΤ13Α (1.10%) and ΑΤ22Α (1.20%) show the highest water absorption values compared to the rest samples, most likely due to their higher porosity and participation of clay minerals that strongly absorb (Smith & Collis, 2001).…”

Section: Discussionmentioning

confidence: 99%

Suitability Assessment of Gretageous Limestones From Thermo (Aitolokarnania, Western Greece) for Their Use as Base and Sub-Base Aggregates in Road-Construction

Mpalatsas¹,

Rigopoulos²,

Tsikouras³

et al. 2017

geosociety

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“…Porous aggregates have higher water absorption values and lower strength [34]. In extreme climate, the absorbed water in aggregate is subjected to freeze-thaw process, producing cracks and damaging the concrete [41]. Mean water absorption values of carbonate rocks of the Bouhti Pind and Bajar area are 0.51% and 0.68%, respectively.…”

Section: Discussionmentioning

confidence: 99%

Physical characterization and alkali carbonate reactivity (ACR) potential of the rocks from Bauhti Pind and Bajar area Hassan Abdal, Pakistan

et al. 2019

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This study is conducted to evaluate aggregate characteristics and alkali carbonate reactivity (ACR) potential of carbonate rocks of the Bouhti Pind and Bajar area, Hassan Abdal, Pakistan. Physical and chemical tests were performed to assess aggregate suitability. Mean specific gravity (2.65-2.65), water absorption (0.51-0.68%), Los Angeles abrasion (24.78-26.10%) and sulphate soundness values (2.86-4.25%) of the carbonate rocks of these areas are within specified limits of their respective standards. Petrographic studies of Bajar area reveal the presence of 96.3% calcite, 2% clays, 1% hematite and 0.7% quartz. These rocks do not contain dolomite and show no expansion in rock cylinder test. Therefore, the aggregate is not prone to ACR and can be used in cement concrete. Rocks of Bouhti Pind area have mean 92% calcite, 3.8% dolomite, 2% clays, 1.2% hematite and 1% monocrystalline quartz. The amount of deleterious minerals specifically dolomite and clays are below the maximum allowed limit to initiate ACR. However, one of the rock cylinders shows 0.043% expansion which is below threshold limit of 0.10% to cause ACR as specified in ASTM C-585. Hence, these carbonate rocks qualify physical characterization and ACR tests and can be used in the construction of roads and in cement concrete.

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Physical Characteristics of Some Indiana Argillaceous Carbonates Regarding Their Freeze-Thaw Resistance in Concrete

Cited by 14 publications

References 0 publications

The impact of petrographic characteristics on the engineering properties of ultrabasic rocks from northern and central Greece

The impact of petrographic characteristics on the engineering properties of ultrabasic rocks from northern and central Greece

Suitability Assessment of Gretageous Limestones From Thermo (Aitolokarnania, Western Greece) for Their Use as Base and Sub-Base Aggregates in Road-Construction

Physical characterization and alkali carbonate reactivity (ACR) potential of the rocks from Bauhti Pind and Bajar area Hassan Abdal, Pakistan

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