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Loss slake index evaluation and its applicability to marl

机译：脱损指数评估及其对泥灰的适用性

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摘要

Some of the main soft rock characteristics are relatively rapid deterioration and degradationrnof strength when soft rock is exposed to atmospheric agents. For this study marl samples from Eocene flyschrnformation found in Dalmatia region in Croatia are selected. When weathered, marl tends to degrade into arnfine-graded soil-like material with high compressibility and low shear strength. Current methods of predictingrnbehavior of marl (i.e. slake durability index) when exposed to weathering process are sometimes unreliable,rntherefore there is a necessity to establish new durability index. This study is an effort to try to implement lossrnslake index developed by Bryson et all. on shale samples as a new index for marl. In this case samples arerntaken from a coastal area, therefore information about natural moisture level could not be used to make a validrncorrelation analysis. Results show that loss slake index, as a method of evaluating durability, could be alsornapplied on marl.
机译：当软岩暴露于大气介质时，一些主要的软岩特征是相对较快的退化和退化强度。为进行这项研究，选择了在克罗地亚达尔马提亚地区发现的始新世飞石形成的泥灰岩样品。当风化时，泥灰易于降解成具有高可压缩性和低剪切强度的细细分级的土壤状材料。预测当遭受风化过程时的泥灰行为（即耐久指数）的当前方法有时是不可靠的，因此有必要建立新的耐久性指数。这项研究是为了尝试实施Bryson等人开发的损耗指数。在页岩样品上作为泥灰岩的新指标。在这种情况下，样品是从沿海地区采集的，因此无法使用有关自然水分水平的信息进行有效的相关分析。结果表明，作为评价耐久性的一种方法，失重指数也可应用于泥灰岩。

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  • 会议地点 Wroclaw(PL)
  • 作者

    G. Vlastelica; P. Mi?(c)evi(c); D. Salvezani;

  • 作者单位

    Faculty of Civil Engineering, Architecture and Geodesy, University of Split, Split, Croatia;

    Faculty of Civil Engineering, Architecture and Geodesy, University of Split, Split, Croatia;

    Faculty of Civil Engineering, Architecture and Geodesy, University of Split, Split, Croatia;

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