Do you want to publish a course? Click here

Study Creep Settlement on Clayey Soils Treatment with Calcium Chloride

دراسة تشوهات الزحف في الترب الغضارية المعالجة بكلور الكالسيوم

1336   0   13   0 ( 0 )
 Publication date 2015
  fields Civil Engineering
and research's language is العربية
 Created by Shamra Editor




Ask ChatGPT about the research

This research aims to study the deformations creep in clayey soils treatment with calcium chloride. Creep experiments were carried out on samples of soil was added with different ratios of calcium chloride compound, was measured deformations with time and monitor the impact of the proportion of calcium chloride added to the soil to these deformations.



References used
AASHTO,(2008).Standard Recommended Practice for Stabilization of Subgrade soils and Base Materials. R Draft
Buisman, K. (1936): “Results of long duration settlement tests”. Proceedings 1 stInternational Conference on Soil Mechanics and Foundation Engineering, Cambridge , Mass. Vol.1:103-107
Goldstein, M. N. (1979). “Mechanics properties of soils (stressstrain and deformation characteristics)”. Strolizdat Moscow, 310 p. En Russe
rate research

Read More

This paper deals with the study of abnormalities crawl that occur in soils Algdharyh bulging Khat turns out that these abnormalities are not related only to enter the water to the soil, but there are distortions in order to get the bulge constant moisture and these distortions you get with the times. This research aims to theoretical and practical study of the behavior of creep in Algdharyh bulging soil.
This research aims to study the effect of stone columns on the change of settlement in clay soils. We defined the stone column and its uses , We explained the transfer mechanism of load to the soil . We spoke about important theories which discus s the settlement of clay soil reinforced by stone columns (Priebe theory) . we used the unite cell idea to study the settlement behavior in the clay soils affected by the stone column to generalize the study on unlimited loading area of clay soils , so we has been defined some of the basics which relate to the unit cell .We made a group of tests on a small model to define the settlement of clay soils in the case of absence of stone columns and in the case of presence of stone columns with different diameters to know the change of the settlement with the change of area replacement ratio inside the unite cell , then we compared the laboratory tests results with the results of Priebe (1995) .
Clayey expansive soils are fine grained soil with a low strength. Its swelling potential and shear strength are significantly affected by the water content. This research aims to study the effect of the initial water content on both shear strength and the required displacement to reach the maximum strength.
The study area (1485 km2) is located in the eastern part of the Syrian Desert between the provinces of Deir al-Zour and Homs. Stretching from Kabbajeb to Heer Palace. Due to the similarity of topography, vegetation and land cover, 48 samples were collected one sample each 4 KM in order to predict the content of the soil of calcium carbonate through satellite images Land Sat ETM7. The spectral reflections of surface soil samples were recorded at laboratory using spectroradiometer (FeildSpecPro®). The results of this study showed that the presence of calcium carbonate at high rates in the soil increases the spectral reflectivity values, and that the spectral domain TM 1B was the best to predict the content of calcium carbonate in the soil.
There are a lot of studies with conflicting results about the correlation between blood levels of vitamin D and lipid profile (total cholesterol, LDLc, HDLc) and the effect of treatment with vitamin D supplements on it. This study aimed to investig ate the effect of vitamin D and calcium supplements on lipid profile. This study included 59 volunteers who received these supplements for prevention of osteoporosis as a prescription from orthopedic doctors between 11/2016 to 1/2018. The average of age was 49±8 years. The plasma values of TC, LDLc, HDLc were measured using enzymatic colorimetric method ( Biosystems kits ) in Tishreen hospital before treatment and after two months. The results were analyzed by T-Student test, and P value <0.05 was considered significant. The mean plasma levels of LDLc before treatment were (100.983 ±28.36) mg/dl, and after two months of treatment were (102.249±27.478) mg/dl, and the difference was not significant. The mean plasma levels of HDLc before treatment were (68.056 ±14.369) mg/dl and after two months of treatment were (62.715 ± 14.39) mg/dl, and the difference was significant. We advise to measure plasma lipid levels during treatment with these supplements depending on the changes that observed in this study.

suggested questions

comments
Fetching comments Fetching comments
Sign in to be able to follow your search criteria
mircosoft-partner

هل ترغب بارسال اشعارات عن اخر التحديثات في شمرا-اكاديميا