https://ogma.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 Geotechnical characteristics of coal mine spoil https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:4607 Wed 11 Apr 2018 11:09:10 AEST ]]> Correlation between soil electrical resistivity, polarisation resistance and corrosion of steel https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:33367 Tue 01 Oct 2019 11:21:48 AEST ]]> The role of moisture cycling in the weathering of a quartz chlorite schist in a tropical environment: findings of a laboratory simulation https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:603 Thu 25 Jul 2013 09:10:24 AEST ]]> Development of long-term localised corrosion of cast iron pipes in backfill soils based on time of wetness https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:39155 Thu 19 May 2022 16:15:38 AEST ]]> The indirect estimation of saturated hydraulic conductivity of soils, using measurements of gas permeability. I. Laboratory testing with dry granular soils https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:1047 Sat 24 Mar 2018 08:32:15 AEDT ]]> Laboratory simulation of the salt weathering of schist: I. weathering of schist blocks in a seasonally wet tropical environment https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:865 Sat 24 Mar 2018 08:31:31 AEDT ]]> Laboratory simulation of the salt weathering of schist: II. Fragmentation of fine schist particles https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:2345 Sat 24 Mar 2018 08:29:13 AEDT ]]> Models for the anaerobic phases of marine immersion corrosion https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:1188 Sat 24 Mar 2018 08:28:40 AEDT ]]> Neutron soil moisture probe operation in saline environments https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:16934 Sat 24 Mar 2018 08:00:30 AEDT ]]> Comparison of vertical transport of <sup>137</sup>Cs and organic carbon in agricultural cracking soils https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:18801 137Cs at two neighbouring field sites sharing the same land management history but comprising clay soils with different cracking characteristics (cracking black Vertisol and a red Luvisol). A finite element model (FEM) simulation of the vertical transport of SOC and 137Cs was developed for each site which accommodates the differing spatial and temporal trends of input and decay of the two species. From these models the diffusion and convection coefficients which best describe the movement of 137Cs at each site were determined. Both convection and diffusion coefficients were found to be substantially higher in cracking Vertisol soils (DCs = 721 mm2/yr, VCs = − 0.84 mm/yr) than in the neighbouring Luvisol soils (DCs = 94 mm2/yr, VCs = 0 mm/yr). Finally the 137Cs transport coefficients determined for each site were used in modelling the SOC profile. The excellent match between predicted and observed SOC profiles suggests that transport of the SOC and 137Cs down the soil column at the Luvisol site follows the same pathways. While the match between predicted and observed SOC profiles at the Vertisol site was weaker this was concluded to be more likely due to the impact of extensive soil cracking which is not explicitly accounted for in the SOC FEM rather than the result of the use of 137Cs transport coefficients.]]> Sat 24 Mar 2018 07:51:04 AEDT ]]> Weathering rates of sandstone in a semi-arid environment (Hunter Valley, Australia) https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:5472 Sat 24 Mar 2018 07:47:05 AEDT ]]> Soil erosion and tolerable soil loss: insights into erosion rates for a well-managed grassland catchment https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:26879 137Cs. A thorough examination of the accuracy and reliability of this method is conducted across a number of spatial scales and years providing confidence in the method and results. Soil depth is measured across the study catchment providing the first bedrock map of a basalt derived soil catchment. Both soil erosion and soil depth are topographically assessed using a high resolution digital elevation model. Results show that soil depth was strongly correlated with elevation and also wetness indices indicating a strong relationship with soil moisture in soil production. Interestingly bedrock topography was decoupled from surface topography. Erosion rates using the 137Cs method and calibrated against independent field data produced a maximum erosion rate of between 0.8 and 2.9 t ha−1 yr−1 using two different modelling approaches. Even though the erosion rates are low, given a mean soil depth of 0.44 m for the catchment this suggests that soil is being lost at rates greater than production. This highlights the significance of assessing erosion loss in the context of overall soil depth and production rates and that even in areas with what appears to be low soil loss rates, the loss can be higher than production. The findings provide a rationale to examine soil erosion in the context of whole catchment processes, not simply soil loss in isolation to other hillslope and catchment data.]]> Sat 24 Mar 2018 07:41:42 AEDT ]]> Weathering rates of sandstone in a semi-arid environment (Hunter Valley, Australia) https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:3314 Sat 24 Mar 2018 07:23:21 AEDT ]]> Acid neutralisation behaviour of concrete sewer pipes https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:22921 Sat 24 Mar 2018 07:12:39 AEDT ]]> A collaborative investigation of microbial corrosion of concrete sewer pipe in Australia https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:23162 Sat 24 Mar 2018 07:10:30 AEDT ]]> Water content measurement in expansive soils using the neutron probe https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:17880 Mon 23 Sep 2019 14:03:58 AEST ]]> Empirical models for long-term localised corrosion of cast iron pipes buried in soils https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:46577 Fri 25 Nov 2022 13:18:28 AEDT ]]>