Bulk density—is the density of a volume of soil as it exists naturally, it includes air space, organic matter, and soil solids. Natural root growth is restricted as BD becomes greater than 1.5 g cm−3 in fine-textured (clay and silt) soil and at 1.7 g cm−3 in course-textured ...
The relative importance of variables was obtained from the multi-parameter models with SOC and clay as the most important variables. The prediction accuracies MLR and vis–NIRS did not differ but were better than SOC-based models, suggesting that vis–NIRS could be a cost- and time-efficient...
Water content,dry unit weight and porosity ratio are three major factors influencing claystrength. 粘性土的强度主要受含水量、干容重、孔隙比三因素的影响,它们存在某种不确定关系,用统计学中的回归分析方法,找出它们之间的线性相关关系─—线性回归方程,并证明其回归效果显著。 3. The influence of dry unit...
(dry)1.4-1.65 67grit(dry)1.4-1.9 68polyoxymethylene1.41-1.43 69glassfiberreinforcedplastic1.4-2.1 70electricjade1.45-1.55 71gravel1.5-1.9 72rubberasbestosboard1.5-2 73nitricacid1.54 74flatrubberplate1.6-1.8 75openhearthslag1.6-1.85 76limestone(bulk)1.6-2.0 77claybrick1.7 78manganeseore1.7-1.9 79...
clay fractionconsolidationoedometer testinundationMost of the works conducted to investigate the parameters likely to govern the behavior of collapsible soils, have been dedicated to initial dry density, water content, degree of saturation and applied load. On the other hand, relatively few works have...
The results of the experimental work for the soils ranging from sand to Bentonite clay with distinct specific surface areas were evaluated based on the use of two simple mixture models (De Loor and Birchak). The effects of dry density on the soil dielectric constant were found to be soil ...
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BDBaby's Daddy(denotes a father of a child who is not married to the mother) BDBrachydactyly BDBase Deficit(acid-base balance) BDBranch Davidian(cult) BDBombardment Division BDBiomedical Diagnostics BDBlade Dancer(game Lineage2) BDBattlefield Distribution ...
The refractoriness of the fireclay was 1621 掳C... A Job Ajala,NA Badarulzaman,AB Aramjat - Materials Science Forum 被引量: 1发表: 2017年 FORMING PRESSURE OF DRY‐PRESSED REFRACTORIES. PART I1 Making use of a hydraulic press which presses standard fire brick, eight commercial mixtures wer...
A density gradient is simply established by placing sugar crystals at the bottom of a test tube (Fisher and Cline, 1963). The sugar dissolves in the solution and diffuses slowly toward the top which is a time-consuming process and not very reproducible. A more practical approach is to place...