Improved method for analysis of the sand, silt and clay content of clayey soils and parent materials

粘土和母质中沙子、淤泥和粘土含量分析的改进方法

• 批准号: 521988-2017
• 负责人: Voroney, Paul
• 金额: $ 1.82万
• 依托单位: University of Guelph
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=640204
• 关键词: Improved; method; analysis; sand; silt

MAR-CO Clay Products Inc, is in the business of producing clay-based products from a range of sources,including natural soils and aggregate materials, that have been widely marketed in North America. One of theirmain products is a formulation made from Queenston shale, a soft rock rich in clay. The product is widely usedin baseball infield preparation for construction of the catcher box, pitcher's mound and application to thesurfaces of the base running paths. While specifications for the composition of the soil material to be used forconstruction and maintenance of the skinned areas of the infield vary, an ideal mix should consist of between50 and 75 percent sand and 25 to 50 percent clay and silt. This mix specification is typically stated in requeststo suppliers of these soil materials.MAR-CO Clay supplies a product for this industry that is produced by crushing Queenston shale and is widelyregarded as being superior. However, analysis of the texture of this product (% sand, silt and clay) followingstandard methods used by commercial soil testing laboratories shows a much coarser product than the specifiedsoil material mix. The problem with using this method is that the product made from Queenston shale iscomprised of clay particles that are cemented together forming larger silt- and sand-sized particles not easilydispersed.This project will develop a rigorous method for precise analysis of the texture (sand, silt and clay content) ofsoils and soil parent materials used for sports field construction and maintenance. This work is essential for thecompany (i) to provide scientifically-based, verifiable method for analyzing and reporting the texture of theirsoil products; (ii) to assess the potential of raw materials for their use in production of engineered soils; (iii) tomaintain and ensure quality control during production of soil products; and (iv) to provide precise specificationfor company soil products.

MAR-CO Clay Products Inc 从事生产各种来源的粘土产品的业务，包括天然土壤和骨料，这些产品已在北美广泛销售。他们的主要产品之一是由昆斯顿页岩（一种富含粘土的软岩）制成的配方。该产品广泛应用于棒球场的准备工作，用于建造接球手箱、投手丘以及应用于垒垒跑道的表面。虽然用于建设和维护内场结皮区域的土壤材料成分的规格各不相同，但理想的混合物应包含 50% 至 75% 的沙子以及 25% 至 50% 的粘土和淤泥。这种混合规格通常在向这些土壤材料供应商提出的请求中说明。MAR-CO Clay 为该行业提供一种产品，该产品是通过压碎昆斯顿页岩生产的，被广泛认为是优质产品。然而，按照商业土壤测试实验室使用的标准方法对该产品的质地（沙子、淤泥和粘土的百分比）进行分析表明，该产品比指定的土壤材料混合物粗糙得多。使用这种方法的问题在于，由昆斯顿页岩制成的产品由粘土颗粒组成，这些颗粒胶结在一起形成较大的淤泥和沙子大小的颗粒，不易分散。该项目将开发一种严格的方法来精确分析质地（沙子、用于运动场建设和维护的土壤和土壤母质的淤泥和粘土含量）。这项工作对于公司至关重要：(i) 提供基于科学的、可验证的方法来分析和报告其土壤产品的质地； (ii) 评估原材料用于生产工程土壤的潜力； (iii) 维持和确保土壤产品生产过程中的质量控制； (iv) 提供公司土壤产品的精确规格。