Application Retarders to Solve the Problem of Lift Joints
Advanced Materials Research
2014
Yuriy Barabanshchikov,
Leonīds Pakrastiņš
Lift joints can cause problems related to insufficient adhesion of new concrete to old.
In this paper, show the possibility to avoid the formation of the lift joints with long breaks of
concreting by lifts by delaying the initial setting of cement in concrete. Three types of cement
retarders was tested: based on salts of phosphoric acid, based on the calcium gluconate and based
on the modified technical lignosulfonates. Research has shown that can be avoided the lift joints in
case the concreting breaks up to a 1 day in by using retarding layer between the old and the new
concrete.
Atslēgas vārdi
concrete, concreting by lifts, lift joints, delayed setting, detergent
DOI
10.4028/www.scientific.net/AMR.1044-1045.659
Hipersaite
http://www.scientific.net/AMR.1044-1045.659
Barabanshchikov, Y., Pakrastiņš, L. Application Retarders to Solve the Problem of Lift Joints. Advanced Materials Research, 2014, Vols.1044-1045, 659.-663.lpp. ISSN 1662-8985. Pieejams: doi:10.4028/www.scientific.net/AMR.1044-1045.659
Publikācijas valoda
English (en)