Iron tailing powder (ITP) is considered to have the potential replace cement manufacture ultra-high-performance concrete (UHPC). However, performance of UHPC with addition ITP after exposure high temperatures more complex. This investigation prepares seven formulations by introducing different contents and investigates mechanical behavior (residual strength), bound water content, microstructura...

This paper shows the use of dimension stone waste in manufacture soil-cement bricks. Initially, a sample soil was analyzed for mineralogical composition, particle size distribution (classifying it proportion silt, sand, and clay), physical performance by plasticity (Atterberg limits specified standard NBR 7180). A series soil/waste/cement mixtures were prepared with contents up to 90% wt.% wast...

A new patented lightweight aggregates is tested. This type is given the name Flashag. The only solid raw material used to manufacture these aggregates is fly ash. The aggregates are sintered but not pelletized and the process is easy and inexpensive. This paper describes these patented aggregates and compares them with other lightweight and normal-weight aggregates that are used for concrete. T...

With the ever-increasing environmentally-driven demand for technologically advanced structural materials, geopolymer cement is fast becoming a viable alternative to traditional cements due to its proven engineering characteristics and the reduction in CO2 emitted during manufacturing (as much as 80% less CO2 emitted in manufacture, compared to ordinary Portland cement). Nevertheless, much remai...

In this work, three different samples of solid industrial wastes cement kiln dust (CKD), granulated blast furnace slag and marble sludge were employed in a cold bonding pelletization process for the sustainable production of artificial aggregates. The activating action of CKD components on the hydraulic behavior of the slag was explored by evaluating the neo-formed phases present in several hyd...

The emotionalised subject of asbestos is treated in chronological terms: how the "magic mineral" known in ancient times in Europe and Asia became in the late nineteenth century an important industrial resource of particular interest to the navies of the world; and how its malign effects gradually became apparent during the present century. The media have made asbestos a notorious villain, but i...

The results of an environmental study on concrete manufacture that follows the standard protocol of life cycle assessment are shown in this document. The study has been done for seven types of concrete: one conventional and six containing cement kiln dust (10%), marble sludge (10%) and demolition waste (10%, 80% and 100%) respectively, in partial or total substitution of natural aggregate. Six ...

Wood Cement Composites – Suitability of Western Australian mallee eucalypts, blue gum and melaleucas The views expressed and the conclusions reached in this publication are those of the author and not necessarily those of persons consulted. RIRDC shall not be responsible in any way whatsoever to any person who relies in whole or in part on the contents of this report. In submitting this report,...

Titanium is a very important element for several industrial applications, being one of the ninth most abundant elements in the Earth’s crust (0.63% wt). In this work it will discuss the different mining and industrial activities involved in the production of titanium dioxide. The first step analyzed will treat about the beneficiation mining process of titanium mineral, and secondly, it will dis...

Abstract Cement kiln dust (CKD) is a residue produced during the manufacture of cement that contains hazardous solid waste high toxicity affects environment and public health. In this study, possibility using CKD as filler in plastic rubber industry was studied. The effect concentration gamma irradiation dose on mechanical physico-chemical properties composite containing polyethylene/devulcaniz...