Influence of soil specimen preparation on results of its organic matter content laboratory determination

Nguyen, Giang

doi:10.1051/matecconf/201819603024

Cited by 3 publications

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References 5 publications

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“…soil sample, heterogeneity of specimens could be a key factor influencing the values of SOM. Nguyen [2018] carried out totally 54 specimens of soils CG, CL, CI and CH from Lipnik, Międzyrzecze and Nieboczowy, Poland. To obtain values of SOM, the H2O2 method according to the PN-88/B-04481 was applied.…”

Section: Introductionmentioning

confidence: 99%

Influence of soil specimen preparation and test methods on soil organic matter content

NGUYEN

2023

PJMEE

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Soil organic matter content (SOM) is used e.g. in soil classification and erosion evaluation. However, its value depends on soil specimen preparation and test method so it is useful to deal with these issues. Totally 150 specimens of soils CI, MS (from Bielsko-Biała, Poland) and different 3 soils, all classified as GC (from Ujsoły, Poland) were tested. To obtain values of SOM, the oxidation method using 30% hydrogen peroxide solution (H2O2) and loss of weight on ignition method (LOI) at 800°C (LOI-800) according to Polish Standard PN-88/B-04481 and LOI at 440°C according to the ASTM D 2974-87 (LOI-440) were applied. The tests were carried out for particles smaller than 0.5 mm. For every soil, 30 specimens (every with a mass about 10 g of dry soil) were prepared from 2400 g of dried soil for 3 methods, so for every method, 10 specimens, taken from various soil amount in frame of total 800 g were prepared. The results showed that values of SOM of tested soils varied from 0.33% to 6.09%. The largest relative difference in values of SOM, caused by soil specimen preparation, was 97.63% (H2O2, soil GC) and the smallest relative difference was 1.65% (LOI-800, soil CI). The largest relative difference in values of SOM, caused by test method was 1126.53% (LOI-800 and H2O2, soil GC) and the smallest relative difference was 15.17% (LOI-800 and H2O2, soil CI). The various values of SOM caused by different test method differently classify soils from organic point of view by the ISO14688-2:2004. AbstraktPrzeanalizowano wpływ przygotowania próbki gruntu i metody oznaczania na zawartość materii organicznej (SOM). W sumie przebadano 150 próbek gruntów (przygotowanych z różnej ilości gruntu) z Bielska-Białej (CI, MS) oraz z Ujsół (GC). Aby uzyskać wartości SOM zastosowano metodę utleniania 30% roztworem nadtlenku wodoru (H2O2) oraz metodę straty masy przy prażeniu (LOI) w temperaturze 800°C (LOI-800) i 440°C (LOI-440). Badania przeprowadzono dla cząstek gruntu mniejszych niż 0,5 mm. Wartości SOM wahały się od 0,33 do 6,09%. Największa względna różnica wartości SOM spowodowana przygotowaniem próbek wyniosła 97,63% (H2O2, grunt GC), a najmniejsza 1,65% (LOI-800, grunt CI). Największa względna różnica wartości SOM spowodowana metodą badania wyniosła 1126,53% (LOI-800 i H2O2, grunt GC), a najmniejsza 15,17% (LOI-800 i H2O2, grunt CI). Uzyskiwane różne wartości SOM mogą skutkować odmiennym klasyfikowaniem gruntu pod kątem organicznym.

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Section: Introductionmentioning

confidence: 99%

Influence of soil specimen preparation and test methods on soil organic matter content

NGUYEN

2023

PJMEE

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Correlation between soil erodibility and light penetrometer blows: A case study in Sungai Langat, Malaysia

Rehman¹,

Desa²,

Rahman³

et al. 2022

Physics and Chemistry of the Earth, Parts A/B/C

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The delayed effects of flooding a residential building – case study

Straż

2019

MATEC Web Conf.

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The work describes the case of a single-family residential building, which suffered a breakdown due to flooding. Flooded water in the nearby watercourse, did not reach the building directly, but in its vicinity, but raised to a very high level the local groundwater table, which reached locally, even above ground level. This condition was maintained over a longer period of time, causing the soil moisture to rise, and thus its geotechnical parameters deteriorated. The consequence of this, the building underwent an uncontrolled and uneven settlement, which was accompanied by the formation of cracks on the walls. The effects of failure were presented and an attempt was made to identify possible causes of failure. Own study of the substrate was carried out in "in situ" conditions and verification of laboratory tests, and their results are presented on relevant charts and tables.

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Influence of soil specimen preparation on results of its organic matter content laboratory determination

Cited by 3 publications

References 5 publications

Influence of soil specimen preparation and test methods on soil organic matter content

Influence of soil specimen preparation and test methods on soil organic matter content

Correlation between soil erodibility and light penetrometer blows: A case study in Sungai Langat, Malaysia

The delayed effects of flooding a residential building – case study

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