mohammad hossein dalvand

Due to the high consumption of mortar and concrete, especially in structures and the increasing demand for cement production, considering the environmental degradation effects of this substance, it seems necessary. One of the solutions is to produce environmentally friendly materials and reduce the damaging effects of Portland cement production, Such as slag geopolymer mortar and concrete. The purpose of this paper is to experimentally investigate the statistical approach of the mechanical and resistive properties of cement mortar and geopolymer fibers mortar. Four mix design including three geopolymer mix design with 0, 0.5, and 1% steel micro-fibers and a conventional mortar mix design were considered. A total of 320 specimens were made, each consisting of 20 cubic specimens, 20 cylindrical specimens, 20 small beam specimens, and 20 small disc specimens. The results indicated that by increasing the percentage of steel microfibers up to 1% in geopolymer samples, the compressive strength, tensile strength and modulus of rupture increased by 6.39, 60.86, and 63.40%, respectively. The number of destruction resistance blows was also about 25 times higher. In all compressive, tensile, flexural, and impact strengths tests, the non-fiber geopolymer specimens had better behavior than conventional cement mortar specimens. In all geopolymer specimens with increasing fiber percentage, standard deviation and coefficient of variation increased as a result of data dispersion.

The discovery of the Dead Sea Scrolls was so important in understanding the Jewish people and its sacred texts that they provided a new light for understanding and constructing another concept of the Bible. In the scrolls, mysticism refers to a type of religious behavior that a person performs in ways designed specifically to achieve the divine realm and throne with attraction. In addition, there is a special connection between the revelatory dreams of the kingdom of God and some scrolls such as thanksgiving, the prayer of angels, war and the Christian law. However, it is not yet clear whether this mystical tradition is rooted in the surviving mystical mysticism of Judaism in the Second Temple, or whether it originated from a series of priests' mystical mysticism, the lunar sect, or both. But it is clear that the mystical tradition left behind by the Christians was developed by the Jews and Christians in later centuries. This research tries to achieve the purpose of expressing the type and language of mystical concepts by using the method of description and analysis in re-reading the mystical concepts and elements of scrolls.