公开(公告)号：WO2013074296A1

公开(公告)日：2013-05-23

申请号：PCT/US2012/062900

申请日：2012-11-01

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： DOMINOWSKI, Jolee M. ,  RADLER, Michael J.

IPC: C09K17/06 ,  E01C11/00 ,  C04B28/04 ,  C04B28/10

CPC classification number: C04B28/10 ,  C04B28/04 ,  C04B2103/0079 ,  C04B2111/00732 ,  C04B2111/0075 ,  C09K17/40 ,  E01C3/04 ,  C04B24/10 ,  C04B24/383 ,  C04B40/0608 ,  C04B2103/22

Abstract: The present invention provides dry mix compositions for use in a cement slurry comprising carboxymethyl cellulose (CMC) alone or in a blend with hydroxyethyl cellulose (HEC), one or more setting retardant, and hydraulic cement or lime wherein the carboxymethyl cellulose has a 1% solution viscosity ranging from 75 to 4400 cps measured as a 1.0 wt.% aqueous solution of the cellulose ether at 20°C, 2.55 s -1 shear rate with a Haake Rotovisko viscometer, Model 550. In addition, the present invention provides methods of forming cement stabilized substrates comprising mixing the dry mix composition and water to form a cement slurry, adding the cement slurry to a substrate, mixing the cement slurry into the substrate, and grading and compacting the mixture of substrate and cement slurry. The compositions retard setting and stabilize cement slurries in use, especially with recycled asphalt substrates.

Abstract translation: 本发明提供用于包含单独的羧甲基纤维素（CMC）或与羟乙基纤维素（HEC），一种或多种阻垢剂和水硬性水泥或石灰的共混物的水泥浆料的干混组合物，其中羧甲基纤维素具有1％ 溶液粘度在75至4400cps之间，测量为2.0wt％的纤维素醚水溶液，20℃，2.55s-1剪切速率与Haake Rotovisko粘度计，550型。此外，本发明提供了方法 形成水泥稳定的基质，包括混合干燥混合物组合物和水以形成水泥浆料，将水泥浆料添加到基材中，将水泥浆料混合到基材中，以及分级和压实基材和水泥浆料的混合物。 该组合物阻止凝固和稳定使用中的水泥浆，特别是与再循环沥青基材。