Title:
Low-Heat Development in Flowing Concretes for Massive Structures
Author(s):
A. Borsoi, S. Collepardi, R. Troli, and M. Collepardi
Publication:
Symposium Paper
Volume:
212
Issue:
Appears on pages(s):
11-22
Keywords:
flowing concrete; heat of hydration; massive concrete structures; superplasticizers
DOI:
10.14359/12675
Date:
6/1/2003
Abstract:
The purpose of this paper is to study the production of crack-free massive con- crete structures manufactured by using flowing mixtures characterized by low heat development and the following performances of the mixtures: - compressive strength in the range of 30-40 MPa at 28-90 days; - slump level of about 200 mm. The main ingredients of these mixes were: - normal portland Cement (not more than (150 kg/m3); - fly ash as pozzolanic mineral addition (up to 150 kg/m3); - ground limestone as filler (70-250 kg/m3) - superplasticizers based on acrylic or sulfonated napthalene polymers; - natural aggregates with a maximum size of 20 mm.