Browsing by Author "Baca Pinelo, Jair Frank"

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    “influencia del porcentaje y tipo de acelerante, sobre la resistencia a la compresión en la fabricacion de un concreto de rapido fraguado ”
    (Universidad Nacional de Trujillo, 2016) Baca Pinelo, Jair Frank; Boy Sanchez, Jose Reynerio; Alvarado Quintana, Hernan Martin
    In this research the influence of the percentage and type of additive acelererante on the compressive strength of concrete made with cement Pacasmayo ICo type was evaluated. The specimens were prepared according to ASTM C39 standard, a total of 60 specimens of 15 cm diameter x 30 cm based on sand, stone, cement, water and additives Sika3 Chema3 performed. Replacement percentages as used in this research were 1, 2, 3, 4, 5% by weight. The specimens were allowed to cure for 7 days, then you realizarles the compression test. From the results determined that when the percentage of additive increased acelererante the compressive strength is increased moderately up to 4% replacement, from there the resistance drops, this actually happened for both types of additives. Finally it was determined that a concrete with 4% accelerating admixture Sika 3 provides better compression strength (209.3 Kg / cm2) compared to the specimens controls (164.3 kg / cm2) and also has improved resistance to a concrete prepared with additive Chema 3 containing the same percentage. Concluding that both additives interfere with concrete strength but being Sika3 additive with which better results.