THE DENSITY AND STRENGTH OF MEXICAN TEPETATE (DURIC MATERIALS)
THE DENSITY AND STRENGTH OF MEXICAN TEPETATE (DURIC MATERIALS)
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墨西哥 TEPETATE（杜瑞克材料）的密度和强度
DOI：
10.1097/00010694-198901000-00004
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发表时间：
1989
期刊：
影响因子：
--
通讯作者：
T. J. Nimlos
中科院分区：
文献类型：
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作者：
T. J. Nimlos
火山灰流凝灰岩在拉丁美洲的环太平洋国家很常见。除了通过地质过程进行固结外，它们还在成土过程中用幻象二氧化硅胶结，有时还用碳酸盐胶结。这些沉积物在墨西哥被称为Tepetate，渗透率非常低，耕种时上面的土壤很快就会被侵蚀。本研究对典型的Tepetate的密度和强度进行了表征。密度在1.00~2.11 mg/m~3之间，18个样品的平均值为1.38 mg/m~3。无侧限抗压强度为3~160 kg/cm2，平均为24.7 kg/cm2。当分散的碳酸盐与二氧化硅作为粘结剂结合时，似乎出现了最强、最硬的Tepetate。
Volcanic ash-flow tuffs are common in the Pacific Rim countries of Latin America. In addition to being consolidated by geologic processes, they are cemented pedogenically with illuviated silica and sometimes also with carbonates. These deposits, called tepetate in Mexico, have very low permeability and the overlying soil erodes rapidly when cultivated. This study characterized the density and strength of typical tepetate. Density varied from 1.00 to 2.11 Mg/m3, and the mean of all 18 samples was 1.38 Mg/m3. Unconfined compressive strength varied from 3 to 160 kg/cm2, and the mean was 24.7 kg/cm2. The strongest, most indurated tepetate appears to occur when disseminated carbonates combine with silica as cements.