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Performance of pyroclastic rocks from Abakaliki Metropolis (southeastern Nigeria) in road construction projects

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Abstract

A total of 15 samples from the Abakaliki pyroclastic rock bodies were subjected to petrographic and mechanical analyses to determine the suitability of the rock type as a road aggregate. Results indicate that the Abakaliki pyroclastic rock yield aggregates with marginal performance in road projects. Although the aggregates meet a number of road stone requirements (i.e., ten percent fines and their ability to absorb water), they fail to meet other key road stone requirements. Whilst their aggregate impact values, Los Angeles abrasion values, and flakiness index are generally above the recommended limits, petrographic analyses reveal appreciable amounts of shaley to muddy lithic fragment and volcanic glassy groundmass. These detrimental constituents and marginal laboratory test results would likely translate to long term poor field performance where the pyroclastic aggregate is used for road construction. This study suggests that utilization of the Abakaliki pyroclastic rock as an aggregate, especially for road construction, requires informed caution, particularly when the material is exposed to climatic extremes (high volume of rainfall and high and fluctuating temperature) as is the case in the tropics.

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References

  • Aghamelu OP, Okogbue CO (2011) Geotechnical assessment of road failures in the Abakaliki area, southeastern Nigeria. Int J Civil Environ Eng 11:12–24

    Google Scholar 

  • Aghamelu OP, Nnabo PN, Ezeh HN (2011) Geotechnical and environmental problems related to shales in the Abakaliki area, southeastern Nigeria. Afr J Environ Sci Technol 4(12):80–88

    Google Scholar 

  • Al-Harthi AA (2001) A field index to determine the strength characteristics of crushed aggregate. Bull Eng Geol Environ 60:193–200

    Google Scholar 

  • ASTM (American Society for Testing and Materials) C 127 (1990) Standard test for specific gravity and absorption of coarse aggregate. ASTM International, West Conshohocken

    Google Scholar 

  • ASTM (American Society for Testing and Materials) C 128 (1990) Standard tests for specific gravity and absorption of fine aggregate. ASTM International, West Conshohocken

    Google Scholar 

  • ASTM (American Society for Testing and Materials) C 88 (1990) Standard test for soundness of aggregate by use of sodium or magnesium sulphate. ASTM International, West Conshohocken

    Google Scholar 

  • Ballivy G, Dayre M (1984) The mechanical behavior of aggregates related to the physicomechanical properties of rocks. Bull Assoc Eng Geol 29:339–342

    Article  Google Scholar 

  • Bangar KM (2005) Principles of engineering geology. Standard Publishers, Delhi, p 451

    Google Scholar 

  • Bell FG (1993) Engineering geology. Blackwell Science, Oxford, p 352

    Google Scholar 

  • Bimel C (1988) Trap rock aggregate for floor construction. Publication No. C88946, The Aberdeen Group, Missouri

  • Brattli B (1992) The influence of geological factors on the mechanical properties of basic igneous rocks used as road surface aggregates. Eng Geol 33(1):31–44

    Article  Google Scholar 

  • BS (British Standard Institution) (1975a) Methods for sampling and testing of mineral aggregates, sands and filler. 812—Part 1. British Standard Institution, London

    Google Scholar 

  • BS (British Standard Institution) (1975b) Methods for sampling and testing of mineral aggregates, sands and filler. 812—Part 2. British Standard Institution, London

    Google Scholar 

  • BS (British Standard Institution) (1990a) Testing aggregates, Part 100—methods for determination of ten percent fines value (TFV). British Standard Institution, London

    Google Scholar 

  • BS (British Standard Institution) (1990b) Testing aggregates. 812—Part 110: methods for determination of aggregate crushing value (ACV). British Standard Institution, London

    Google Scholar 

  • Cobanoglu I, Ozpinar Y, Ozbek A (2003) Engineering properties of tuffs in the Sandikli region (Afyon-Turkey) and their possible use as concrete aggregates. Bull Eng Geol Environ 62:369–378

    Article  Google Scholar 

  • Irfan TY (1994) Aggregate properties and resources of granitic rocks for use in concrete in Hong Kong. Q J Eng Geol 27:25–28

    Google Scholar 

  • Jaeger JC, Cook, NGW (1969) Fundamentals of rock mechanics, Science Paper Back edn. Chapman and Hall, London, p 515

  • Eze EO (1997) Geotechnical assessment of some charnockites from Nigeria as construction materials. Q J Eng Geol 30:231–236

    Article  Google Scholar 

  • Farrington JL (1952) A preliminary description of the Nigerian lead–zinc field. Econ Geol 47:583–608

    Article  Google Scholar 

  • Franklin JA, Dusseault MB (1989) Rock engineering. McGraw-Hill, New York, p 600

    Google Scholar 

  • Freedonia (2009) World construction aggregates: industry study with forecasts for 2013 & 2018. The Freedonia Group Inc, Cleveland. Study No. 2564, p 322

  • Goswami SC (1984) Influence of geological factors on the soundness and abrasion resistance of road surface aggregates: a case study. Bull Assoc Eng Geol 30:59–61

    Article  Google Scholar 

  • Hartley A (1974) A review of the geological factors influencing the mechanical properties of road surface aggregates. Q J Eng Geol 7:69–100

    Article  Google Scholar 

  • Hoque M (1984) Pyroclastics from the lower Benue Trough of Nigeria and their tectonic implications. J Afr Earth Sci 2(4):351–358

    Google Scholar 

  • ISRM (International Society for Rock Mechanics) (1978) Suggested method for petrographic description of rocks. Commission for Standardisation of Laboratory and Field Tests. Int J Rock Mech, Miner Sci Geomech Abstracts 15(2):43–45

  • ISRM (International Society for Rock Mechanics) (1979) Suggested methods for determining the uniaxial compressive strength and deformability of rock materials. Commission for Standardisation of Laboratory and Field Tests. Int J Rock Mech, Miner Sci Geomech Abstr 16(2):135–140

  • ISRM (International Society for Rock Mechanics) (1981) Suggested methods for rock characterization, testing and monitoring. In: Brown ET (ed) Rock characterisation, testing and monitoring. Pergamon Press, Oxford, p 211

  • John-Onwualu JN, Ukaegbu VU (2009) Petrogenetic and geotectonic implications of Lokpa-Ukwu pyroclastics in southern Benue Trough, Nigeria. Pac J Sci Technol 10(1):487–500

    Google Scholar 

  • Krynine DP, Judd WR (1957) Principles of engineering geology and geotechnics. McGraw-Hill, New York, p 699

    Google Scholar 

  • Lambe TW, Whitman RV (1969) Soil Mechanics. John Wiley, New York, p 395

    Google Scholar 

  • Lefond SJ (1975) Industrial minerals and rocks: non metallic other than fuels, 4th edn. American Institute of Mining, Metallurgical and Petroleum Engineering, New York, p 1360

    Google Scholar 

  • Lester D (1981) Quarrying and rockbreaking: the operation and maintenance of mobile processing plants. Intermediate Technology Publications, London, p 116

    Google Scholar 

  • McConnel RB (1949) Notes on the lead–zinc deposits of Nigeria and the Cretaceous stratigraphy of the Benue and cross River valleys. Unpublished Geologic Survey of Nigeria. Report. No. 752

  • Nelson TI, Bolen WP (2008) Construction aggregates. Miner Eng 60:25–26

    Google Scholar 

  • Neville AM (1973) Properties of concrete. Wiley, New York, p 686

    Google Scholar 

  • Obiora SC, Umeji AC (1995) Alkaline intrusive and extrusive rocks from areas from west of the Anyim River, southeastern Benue Trough. J Miner Geol 31(1):9–19

    Google Scholar 

  • Ofoegbu CO, Amajor LC (1987) A geochemical comparison of the Pyroclastic rocks from Abakaliki and Ezillo, southern Benue trough, Nigeria. J Miner Geol 23(1&2):45–52

    Google Scholar 

  • Okezie CN (1957) The geology of Izekwe area of Ogoja division. Unpublished Provisional Interim Report on the Mapping Sheet No. 289. Nigerian Geol Surv No. 1, p 20

  • Okezie CN (1965) A preliminary report on the igneous rocks of Abakaliki Town and environs and their relations to lead-zinc mineralization. Unpub Nigerian Geology Survey Agency, Report. No. 1349, p 30

  • Olade MA (1978) Early Cretaceous basalt, volcanism and initial continental rifting in the Benue Trough, Nigeria. Nat Phys Sci 273:451–459

    Google Scholar 

  • Olade MA (1979) The Abakaliki pyroclastics of southern Benue Trough, Nigeria: their petrology and tectonic significance. J Miner Geol 16(1):17–24

    Google Scholar 

  • Reidenouer DR (1970) Shale suitability. Phase II: Pennsylvania Department of Transportation, Bureau of Materials, Testing and Research. Interim Report, No. 1, p 198

  • Reyment RA (1965) Aspects of the geology of Nigeria. Ibadan University Press, Ibadan, p 145

    Google Scholar 

  • Roberts A (1977) Geotechnology. An introduction text for students and engineers. Pergamon Press, Oxford, p 347

    Google Scholar 

  • Smith MR, Collins L (eds) (2001) Aggregates: sand, gravel and crushed rock aggregates for construction purposes. 3rd edn, Geological Society Engineering Geology Special Publication. No. 9. The Geological Society, London. vol 17, p 339

  • Tattam CW (1960) A review of Nigerian stratigraphy. Annual Report of the Geological Survey of Nigeria, Kaduna, p 46

  • Ukaegbu VU (2008) A tectonic implication of the eruption of pyroclastics in Uturu, southern Benue Trough, southeast Nigeria. Glob J Geol Sci 6(2):123–127

    Google Scholar 

  • Uzuakpunwa AB (1974) The Abakaliki pyroclastics, eastern Nigeria: new age and tectonic implications. Geol Mag 3(1):65–70

    Article  Google Scholar 

  • Van Rooy JL, Nixon N (1990) Mineralogical alteration and durability of Drakensberg basalts. South Afr J Geol 93(5&6):729–737

    Google Scholar 

  • Waltham T (1994) Foundations of engineering geology, 2nd edn. Spon Press, London, p 88

    Google Scholar 

  • West G (1994) Estimating aggregate properties from the unconfined compressive strength of rock. Q J Eng Geol 27:275–276

    Article  Google Scholar 

  • ASTM (American Society for Testing and Materials) C 535 (1988) Standard test for resistance to abrasion of large-size coarse aggregate by use of Los Angeles machine. ASTM International, West Conshohocken

    Google Scholar 

Download references

Acknowledgments

The authors are dutifully grateful to Mr Peter Okanya who was a key personnel during the field work and laboratory analyses at the Material laboratories of Marlun Construction Company, Enugu, Enugu State, and SCC Construction Company, Kashimbila, Taraba State. Mr Tony Chukwu is appreciated for helping out in the petrographic analyses.

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Correspondence to O. P. Aghamelu.

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Okogbue, C.O., Aghamelu, O.P. Performance of pyroclastic rocks from Abakaliki Metropolis (southeastern Nigeria) in road construction projects. Bull Eng Geol Environ 72, 433–446 (2013). https://doi.org/10.1007/s10064-013-0489-0

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