Ronald F. Vargas Zúñiga Email & Phone Number

Alajuela, Cr

San José, Costa Rica

Project Manager for Zapotal Golf & Beach Club development

San José, Costa Rica

Construction I, Civil Engineering course

Costa Rica

Independent consultant in project management, management systems, industrial processes and business development in the construction area.

San José, Costa Rica

He directed the Affordable Housing and Houses of Tomorrow programs for the Customer Solutions section, which aimed to provide fair housing for the middle and lower classes. He worked with a special focus on research and development of new construction methods, and responsible resource management. Managed to sign contracts for over USD 8,0 M on his first year.

San José, Costa Rica

Alajuela, Costa Rica

The functions he directed were focused on the implementation, assurance and quality control, productivity and use of the materials used in the processes of the entire PC Industrial Center (CIPC).

Alajuela, Costa Rica

Coordinated the concrete mixers of the Heavy and Light Precast Plants with the target of optimizing the direct cost of these mixes, personnel management, and production costs. In its first year he registered optimizations of 2.3 % in direct cost and 15.3% in indirect costs. At the same time, he modernized the manufacturing process and provision of concrete RCP ASTM C76/C14 until reaching competitiveness standards that allowed it to penetrate previously unattainable markets.

Limón, Costa Rica

Conducted inspection and testing programs for precast element materials (prestressed slabs, prestressed beams, simply reinforced slabs, reinforced concrete pipes, manholes, New Jersey barriers, curbs, etc). Responsible for coordination and inspection of the operations carried out by Productos de Concreto, S.A., for the projects of the Container Terminal of Moín, Limón, Costa Rica, and Costa Norte LNG Terminal, Colón, Panamá. He generated and reviewed Inspection and Test Plans (ITP) for… Show more Conducted inspection and testing programs for precast element materials (prestressed slabs, prestressed beams, simply reinforced slabs, reinforced concrete pipes, manholes, New Jersey barriers, curbs, etc). Responsible for coordination and inspection of the operations carried out by Productos de Concreto, S.A., for the projects of the Container Terminal of Moín, Limón, Costa Rica, and Costa Norte LNG Terminal, Colón, Panamá. He generated and reviewed Inspection and Test Plans (ITP) for activities and materials, Declarations of Construction Methods (MS), and general technical documentation, according to project specifications and international standards. Show less

Heredia, Costa Rica

Developed a rheological/calorimetric analysis and characterization of all hydraulic cements in the Costa Rican and Nicaraguan markets. He created a matrix of tests on cementitious mixtures with different dosages of plasticizers and superplasticizers from all available commercial houses. In charge of the design of concrete mixtures according to ACI 211.1 and the Faury variant method; both modified for the use of plasticizers and superplasticizers. He is trained in the physical/chemical mode of… Show more Developed a rheological/calorimetric analysis and characterization of all hydraulic cements in the Costa Rican and Nicaraguan markets. He created a matrix of tests on cementitious mixtures with different dosages of plasticizers and superplasticizers from all available commercial houses. In charge of the design of concrete mixtures according to ACI 211.1 and the Faury variant method; both modified for the use of plasticizers and superplasticizers. He is trained in the physical/chemical mode of action of cement grinding aids, and concrete mix admixtures types A, B, C, D, E, F and S, in accordance with ASTM C494. Show less

Alajuela, Costa Rica

He developed the Thesis: 'Physical, mechanical, and performance characterization of hydraulic cement paste added with polystyrene nanofibers'​. Research presented at TechConnect World Innovation Conference and Expo 2014, Washington DC; Nano Science and Technology Institute (NSTI).

Cartago, Costa Rica

Junior Engineer in the Quality Management Program at labCIVCO with the aim of achieving the accreditation of eight tests before the Costa Rican Accreditation Entity (ECA) under INTE Standard ISO / IEC 17025: 2005.

M.Eng., Modern Manufacturing Systems

Lic., Construction Engineering, Study Plan Accredited As Substantially Equivalent By The Ceab.

Professional profile: People with a facility for mathematics, with a taste for building engineering works such as buildings, roads.