الفهرس 
Chapter 1:IntroductionOnly 14 pages are availabe for public view
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Abstract
The main aim of get different types of foam cement with high air content and as a result of the increased interest in these types of cement concrete recently to exploit them in many applications such as thermal insulation, sound insulation, etc., and accordingly it was thought to mix other materials with cement to obtain high air content within the prepared samples such as emulsions, where emulsions and foam are among the most important classifications. The science of colloids and micronized systems is widespread not only from an industrial point of view but also receives great interest from the academic community.
In this work, we’ve prepared a stable polymeric emulsion of styrene using laponite particles with modified surface to become hydrophobic (Pickering emulsions) and mixed with cement paste in certain proportions to polymerize them together and studying the changes in their physical and chemical properties in terms of air content represented in the density image.
This study led to a set of results as follows:
• A standard sample of cement was prepared in the same proportions without adding any emulsifier and subjected to the same tests and comparing its results with similar results in research and references published worldwide.
• A sample of the emulsion was polymerized in the same ratios used and poured into a mold with the same dimensions as the powdered samples and subjected to the same tests that were carried out on the cement samples to compare and analyze the results.
• By increasing the volume of the emulsion mixed with the cement paste, the density of the sample decreases according to the weight and the electron microscope images, noting the increase in its heat tolerance by observing the level of cracks on the surface of each sample until it is completely absent when using 175 ml of the emulsion in the last sample.
Thermal gravimetric analysis of the samples did not show a significant anomaly from the standard cement sample at the beginning of mixing with small volumes of emulsion, but by increasing the volume of the emulsion to the level of 125 & 175 ml, it was observed that the behavior of thermal weight decomposition changed by the appearance of a greater loss in weight than the previous samples at a lower temperature and time as a result of an increase in The volume of the mixed emulsion was not less than 70% of the original volume after completing the thermal decomposition experiment.
Hardness tests did not show any abnormalities than expected, as the volume of the emulsion increases, the hardness of the prepared samples decreases compared to the standard sample.