Polymer concretes are composite materials comprised of two or more different materials. The fillers are compounds such as resin, hardener, accelerator, colorant, or matrix structure reinforcing materials. When it is considered as a building component for the body of a machine tool, machine or application, different compounds are prepared for the target application. By means of an appropriate design, production and tests that can resist the working conditions, it is possible for any composite to obtain the desired result. For this purpose, it is necessary to determine many mechanical properties. The pressure strength is therefore a basic feature to know. Within the framework of this study, the change in pressure strength was elaborated on the basis of the different aggregate distribution and binder rates designed on the standard cement granulometric curves. The used binders and fillers were polyester and epoxy resin and quartz respectively. The results comply with the literature, and it was found that an appropriate mixture optimization is possible for the desired strength.

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Polymer concrete, which has a composite structure composed of at least two materials, can be prepared with materials such as resin, filling, hardening and accelerating materials that support the matrix structure. The structure can be prepared in different compositions as desired. The flexural strength of a brittle structure is considerably significant and it is important to know the mechanical characteristics in terms of the design and potential impacts in the study. In tfyis study, the flexural strength variations of PC specimens prepared by using various aggregate distributions, which were designed based on granulemetry curves of standard cement concrete, and binding ratios and the flexural strength variations of these PC specimens, as a result of their ossifications, were investigated at temperatures of 50°C, 75°C, 100°C and at room temperature. Polyester resin and quartz were used as binding and filling materials. It was observed that ossification in warm atmosphere increases the flexural strength at certain temperatures and structures.

Many pieces in structure of a dynamometer may negatively affect the accuracy of the measurements since each piece may display a different strain and stress depending on its material and construction. A one piece dynamometer has been designed to eliminate these negative effects and to facilitate reliable force measurements. A dynamometer that its dimensions were confirmed following strength calculations was manufactured and calibrated in two different ways. The first one was multipoint calibration method in which certain loads were applied to the dynamometer and strain values corresponding to these loads were matched. The second calibration method was implemented using Kistler dynamometer that its results are accepted to be accurate by everyone and it was based on equivalency of force values resulted from work piece processing and force values resulting from machining work pieces with the same parameters to the manufactured dynamometer. The manufactured dynamometer was capable of measuring cutting forces and feeding forces.

Tarım makinaları imalatı yapan bir fabrikada çalışanlar üzerine gürültünün işitme kaybı açısından etkilerinin incelenmesi çalışılmıştır. I şyerinde tezgâhların ve aletlerin motor güçleri ve üretilen ürünlerin operasyonlarına bağlı olarak gürültü değerleri ölçülmüştür. O lçülen değerler de en yüksek gürültü değeri 86.1 dB(A) ve devamında diğer dört birimde 82.1-75.7 dB(A) olarak ölçülmüştür. Yönetmeliklere ve literatür çalışmalarına göre iş yeri risk olarak kabul edilen 85 dB(A) gürültü seviyesi değerleri için yönetmeliklerde tanımlanan koruyucu önlemlerin alınması gerekir. O zellikle yüksek değer ve aşağı gürültü seviyelerine doğru ölçüm alınan birime göre, çalışanların mevcut gürültü seviyesinde işitme sağlığı üzerine etkilerinin ölçülmesi ve zamana bağlı sür-dürülebilir kontrollerinin yapılması uygun görülmektedir.