Francisco A. Corpas-Iglesias

Study of Thermal Conductivity of Materials Made of Sludges Water Depuration of the Brewing Industry

Industrial wastes contribute significantly to environmental pollution following the directives of European environmental policies, we must look for alternatives for minimization, treatment and / or recovery of wastes [1]. Several studies have found that basic materials such as polymers, cements and ceramics are better suited to inerting and neutralization of the waste by encapsulation in your matrix [2]. They are also increasingly used more insulating bricks. One way to increase this capacity is introduce additives organics into the matrix [3]. This is the case presented below, where they have used sludge from water purification of the brewing industry for the manufacture of ceramics.

Treatment of Urban Waste Water Sludges by Means of his Appraisement for Incorporation in Ceramic Matrix

Industrial residues generated by the modern society constitute an environmental problem and are harmful both to the health and to the environment (greenhouse effect). In addition, they can give place to leaching pollutants [1,2] more concretely in the European area; it tends to the politics of them 3R, recovery, recycling and reutilization. It is, in this frame, where the present work is included. On the other hand, like result of environmental regulations, bricks of clay are going to be demanded by an increase in the insulating capacity. A way of increasing the insulating capacity of the bricks is to generate porosity in the counterfoil of clay.

Study of the Mechanical Properties of Concrete with Sisal and Polypropylene Fibers

Fiber concretes have been revolutionizing the market, as well as lower operating costs, structurally act. The total or partial replacement of steel with natural fiber reinforced concrete could be an economical way to provide an alternative method to achieve greater security in concrete structures, as well as a way to use materials that are energy efficient, economic and ecological.Sisal fiber reinforcement is promising for use in composite materials, due to their low cost, low density, high strength and specific modulus, without risk to health, readily available in some countries and renewal.We studied four different dosages of concrete: without fiber, with two different types of polypropylene (PP) fibers and with sisal fiber. Consistency of fresh concrete, bulk density, water absorption, capillary absorption, compressive strength and microstructural properties values of the samples were investigated.Regarding the consistency of fresh concrete, measured by testing Abrams cone, as the results show a substantial difference between the flowability of the concrete without addition of fibers and other dosages with different types of fibers studied. The compressive strength test at 7 and 21 days also shows resistance as early ages performed fiber, while with increasing days of curing, the resistance becomes a reaction product of cement and pozzolanic water have no effect added fiber. Absorption tests and capillary absorption of water, like the above, consistent with the results shown bibliographic polled, the results being higher in both assays for dosages comprised of PP and sisal fibers.