MODELING AND SIMULATION OF CHLORIDE DIFFUSION IN CONCRETE WITH RECYCLED AGGREGATES
Published In: INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL AND STRUCTURAL ENGINEERING
Author(s): JORGE L. ALAMARAL-SANCHEZ , CARLOS A. ROSAS-CASAREZ , CARLOS P. BARRIOS-DURSTEWITZ , JOSE M. GOMEZ-SOBERON
Abstract: The concrete along with steel, are the responsibility structural material required to respond to mechanical stresses; specifically, the tensile stresses are borne by the steel, and it is this material that involvement of durability can lose their resilience. Corrosion of steel is one of the main causes of this affectation in the steel, and this is caused by the entry of chloride ions in the called phenomenon diffusion. This phenomenon is governed by the diffusion equations of the Fick's first and second law [1]; for these, there are several models that describe the behavior of chloride diffusion in conventional concrete, but nevertheless, not in the recycled concrete. In this paper, are used as basis, the models of Janzhuang Xiao et al. [2] and Long-Yuang Li et al. [3] to model and simulate the phenomenon of chloride diffusion in concrete with recycled aggregates; for which it has been used a five-phase model for the aggregate: old and new Interfacial Transition Zones (ITZ), new and ol
- Publication Date: 03-Aug-2014
- DOI: 10.15224/978-1-63248-006-4-63
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INFLUENCE OF THE SHAPE OF THE NATURAL AGGREGATES, RECYCLED AND SILICA FUME ON THE MECHANICAL PROPERTIES OF PERVIOUS CONCRETE
Published In: INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL AND STRUCTURAL ENGINEERING
Author(s): JORGE L. ALAMARAL-SANCHEZ , CARLOS A. ROSAS-CASAREZ , CARLOS P. BARRIOS-DURSTEWITZ , JOSE M. GOMEZ-SOBERON , MANUEL J. CHINCHILLAS-CHINCHILLAS , OCTAVIO H. ACUNA-AGUERO
Abstract: Currently the problems of water quality are increasing; much of the material is rinsed and is dragged into streams, rivers, and groundwater from the contaminated superficial draining, which contains materials that are applied to the soil surface. Therefore is that the provide the greatest amount of uncontaminated water to the subsurface is of great importance, since it can still potentially solve some important collateral problems, such as the settlement in the soil, which is related largely to levels low capacity of the aquifer. Therefore, use Pervious Concrete (PCo) can help prevent physical barrier between rainwater and underground (especially in urban areas). For the investigation of the feasibility of PCo three types of aggregate were used: Round Natural Aggregate (RNA), Natural Crushed Aggregate (NCA) and Recycled Aggregatefrom Concrete crushed (RAC),since the shape of the aggregates generally determines the mechanical properties; and yet very little is known about their correlat
- Publication Date: 03-Aug-2014
- DOI: 10.15224/978-1-63248-006-4-64
- Views: 0
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