نتایج جستجو برای: silty sand
تعداد نتایج: 29299 فیلتر نتایج به سال:
Benefiting from low cost, high tensile strength, chemical stability, and great resistance to temperature, alkaline, acids, it is a reasonable valuable technology use basalt fiber (BF) as an admixture optimize building materials. So far, the challenge still master engineering performance of BF-reinforced materials, especially poor subgrade soils. To this end, paper carried out series unconfined ...
A hierarchical geostatistical analysis is conducted on a high-resolution, multiscale hydraulic conductivity (lnK) map, created by scaling up an experimental stratigraphy. Unlike a previous study which evaluates lnK variograms within individual depositional environments, this study analyzes deposits (or samples) that incorporate multiple depositional environments. Based on conductivity cutoffs s...
This paper proposed an MSC-Transformer model based on the Transformer’s neural network, which was applied to seabed sediment classification. The data came from about 2900 km2 of area northern slope South China Sea. Using submarine backscattering intensity and depth obtained by sub-bottom profiler, combined with latitude longitude information, a dataset Sea constructed. Moreover, using MSC-Trans...
This study investigated the acoustic properties of NBRRI interlocking compressed stabilized earth blocks (ICSEB) made from silty sand. The blocks, with a thickness 230mm and cured for 21 days, were evaluated their coefficient values at octave bands 500Hz, 1000Hz, 2000Hz, 4000Hz. results showed that ICSEB had relatively high values, ranging 0.71 to 0.99 tested frequencies. highest value was reco...
As society moves towards decarbonisation, it is important to assess the hydromechanical behaviour of binders that could offer a low-carbon alternative Portland cement in ground improvement technologies. This work considers two such alternatives: one still largely unexplored (metakaolin-based geopolymers) and better known (colloidal silica). Results from unconfined compressive strength, permeabi...
Soil moisture is among the key environmental variables controlling evaporation, infiltration and runoff. However, the temporal evolution of soil moisture is not easy to measure or monitor at large scales due to its spatial variability, which is largely driven by local variation in soil properties and vegetation cover. Consequently, soil moisture estimates using land surface models are typically...
Organic matters are the most important factors that affect soil compactability and physical characteristics. In order to study the effect of pistachio waste on physical characteristics of two soils, a factorial experiment was conducted in a completely randomized design with three replications in a greenhouse. The treatments included pistachio waste at 4 levels (0, 3, 6 and 9 w/w %) and two type...
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