Papers by Author: Heng Hu Sun

Abstract: With the benefits of rapid industrialization, there are inevitable problems such as energy depletion, resource exhaustion, and severe pollution of the environment - all roadblocks to continued social development. Discovering sustainable production techniques has become a top priority. It was under these circumstances that Sialite was born. Sialite is a new kind of silica-alumina-base cementious material. This paper introduces the simulation of rock formation theory and Sialite’s high performance.

Abstract: The effect of the thermal treated red mud on mechanical properties of loess –containing aluminosilicate based cementitious materials is investigated. And the characteristic of hydration production is tested using XRD, SEM and EDAX methods. The results show that the thermal treated red mud not only has excellent cementitious properties but also can improve the mechanical properties of loess –containing aluminosilicate based cementitious materials. Moreover when the content of red mud is 5%, the improved effect is optimal. On the one hand, the alkaline ingredients of red mud can promote abundant ettringites to produce at early ages. And the ettringites contribute to early strength of the cementitious material. On the other hand, the content of red mud is too high to improve the long-term strength.

Abstract: The utilization of industrial solid wastes as building materials has been thought of as the best way to solve the problems caused by high waste production, high resource consumption and high pollution that is inherent with the primary industries of China. However, due to the low level of usage by previous technologies, these serious problems of the primary industries still persist. Hence, it is urgent to seek an effective way to solve these problems. In this paper, based on the understanding of the theory of simulation to formation of rock and the research advances of sialite technology, it is concluded that sialite technology can achieve the effective usage of industrial solid wastes.

Abstract: Sialite, made according to the theory of simulation to formation of rock, is a new aluminosilicate-based cementitious material. Production of sialite does not require calcination, which consists of a main body (90%-97%) and an auxiliary body. Main body is made up of solid wastes such as fly ash, gangue, blast furnace slag, steel slag, red mud, waste bricks, waste glass and any other types of slag produced as a by-product in burning processes. The auxiliary body is a diagentic substance made by natural minerals. Sialite products have been successfully put into practice, which have the characteristics of cleaning production and low consumption of natural resources. Therefore sialite technology would provide an efficient method for promoting the development of a sustainable economy.

Abstract: With the rapid development of the national economy, an effective way is urgently anticipated to unburden the pressure of low resources utilization, high energy consumption and serious environment pollution resulting from industry solid waste. In the present paper, a new process by applying atomization technique into disposing of melting slag is proposed for highly effective utilization of solid waste. It is characterized as simultaneous completion of super cooling and fine pulverized, and improvement on utilization efficiency of melted slag for increase of activity and saving of milling energy. This method is believed to be a new available approach to greatly promote the development of our recycling economy

Abstract: The amount of melted slag has substantially increased due to the rapidly expanding Chinese industry in the recent years. The exiting methods to dispose such slag bring about some problems which hinders its utilization. In the paper, a new method, realized by high pressure jet, is put forward to simultaneously producing fine powder and increasing cementitious activity, and the method would be useful to a benign recycle of resources, energy and environment.

Abstract: Sialite is an ecological cementitious material that can be polymerized at normal temperature and under normal pressure. According to the nature’s rules of transformation from pozzolana to rock, rock mineralogical theories, geochemical theories and materials design theories, coordinate rule and compatibility principle, large amount of industrial solid wastes are made to produce sialite, which not only can achieve the reuse of the industrial solid wastes, but also can solve the problem of lack of original resources in cement industry. On the bases of the sialite technology theory background and the study evolve of laboratory and the applied projects, the significance of the sialite technology is expatiated.

Abstract: The self-adaptive vegetation concrete is a porous concrete which has characteristics of self-adaptation (suitable for acid-alkali degree and humidity that plant grow automatically), self-supply (the necessary nutrition element offers plants to grow within the structure) and necessary mechanics of the project. To meet the vegetable growth in self-adaptive vegetable concrete, the base body of vegebable concrete is produced with many kinds of cementitious material and complex of different aggregate. The experiment shows that the vegetable concrete base body which has a suitable acid-alkali degree environment of seed sprout (PH < 9) and suitable space environment for plant root system growth( porosity rate > 40%) is produced through using self-made soil stabilizer (the proportion of soil stabilizer and the clay is 1:1) and different aggregates (cobble, coral reef and ceramsite).