公开(公告)号：US20180002232A1

公开(公告)日：2018-01-04

申请号：US15537798

申请日：2015-12-18

Applicant: LAFARGE

Inventor： Antoine CREYX ,  Arnaud JONNEKIN ,  Benoit MATHONIER ,  Samir MESSAD

IPC: C04B28/04 ,  C04B40/06 ,  C04B111/00

CPC classification number: C04B28/04 ,  C04B40/0625 ,  C04B2111/00068 ,  C04B2111/0075 ,  Y02W30/92 ,  Y02W30/94 ,  C04B14/06 ,  C04B14/14 ,  C04B14/28 ,  C04B2103/0088 ,  C04B2103/12 ,  C04B2103/304 ,  C04B2103/32 ,  C04B18/08 ,  C04B18/141 ,  C04B18/146 ,  C04B22/085 ,  C04B24/085 ,  C04B24/16 ,  C04B24/246

Abstract: A hydraulic composition for the construction of pavements, and in particular for the repair of pavements, includes a hydraulic binder including a cement, 0.18% to 0.35% of a superplasticiser, where the percentage is expressed by dry weight compared to the cement, and where the superplasticiser includes a branched polymer including at least one pendant chain, with a terminal function of the phosphonate or phosphate type, and 0.25% to 2% of a setting accelerator, where the percentage is expressed by dry weight compared to the cement, where the setting accelerator includes a calcium salt, where the hydraulic composition has a Water/Cement ratio higher than 0.38 and strictly less than 0.45.