The Relationship between the Con- Stitution of Brickmaking Clays
ثبت نشده
چکیده
ABSTR&CT Seven brickmaking clays from various geological horizons have been studied by differential thermal and X-ray methods. The minerals detected included kaolinite, illite, montmorillonite, chlorite, swelling chlorite, calcite and quartz, and rough estimates were made of the quantities present. For the same clays, deformation-under-load was measured at four different heating rates, and strength and water absorption were determined on fired blocks. No correlation between the firing properties and mineralogical constitution is observable.
منابع مشابه
The Emergence and Evolution of Political Parties of the Constitution: The First and Second Periods
The evolution of studies of political parties of constitution: The first and second periods show that the evolution of parties indicates that researchers' attitude to political pheno-mena also coincide with the evolution of political realities has been transformed, and the consideration of ideologies in the analysis of the parties have replaced with religious perspectives and anti-authoritarian...
متن کاملAdsorption Mechanisms of Cadmium onto Pillared Clays and Chalcogenides
Interactions between Cd, pillared clays and chalcogenedies have been studied using nanomineralogical experiments. XRD, DSC and chemical analysis. The synchrotron-based X-ray absorption spectroscopy (XAS) was applied to characterize the reaction phases. The mean bond lengths between, Cd-S, Fe-S, Sb-S, Cd-Cd (in chalcogenedies), Al-Cd, Cd-Ti, and Fe-Cd, (in pillared clays) were determined by XAS ...
متن کاملThe Effect of Wetting-Drying Cycles and Plasticity Index on California Bearing Ratio of Lime Stabilized Clays
This paper aims to present an experimental and numerical study on the effect of wetting-drying cycles and plasticity index on the California Bearing Ratio (CBR) of lime stabilized clayey soils. The numerical analysis was carried out based on finite element method for comparison between results of experimental and numerical studies. Three clays with different plasticity indices were mixed with v...
متن کاملThe Relationship among EFL Learners' Self-Directed Learning, Resilience, and Willingness to Communicate
The present study aspired to scrutinize the relationship among EFL learners' Self-directed Learning (SL), Resilience (RE), and Willingness to Communicate (WTC). To accomplish this purpose, 124 male and female undergraduate EFL learners, within the age range of 20 to 32, were selected through convenience sampling. These EFL learners were asked to fill in three questionnaires, namely the SL...
متن کاملتثبیت پتاسیم و ویژگی بار الکتریکی رس خاک در شماری از خاکهای مناطق مرکزی و شمال ایران
Potassium fixation and release by phillosilicate clay minerals in soils are very important processes influencing the availability of K to plants. This investigation was conducted to determine the potassium fixation capacity and charge characteristics of soil clays of 15 surface soils (0-30 cm) from central and northern Iran. After clay particle separation, both total and tetrahedral cation exch...
متن کامل