湿喷法喷射混凝土配合比设计中试配强度的修正  

Modification of trial mix strength in mix proportion design of wet blasting law shotcrete

作　　者：陶新明 TAO Xinming

机构地区：[1]福建省建筑科学研究院有限责任公司,福建省绿色建筑技术重点实验室,福建福州350108

出　　处：《福建建设科技》2020年第6期56-59,71,共5页Fujian Construction Science & Technology

摘　　要：湿喷法喷射混凝土由于其施工工艺及掺入速凝剂的影响,采用普通混凝土配合比设计方法进行计算得出的配合比无法满足现场施工要求。本文通过找出喷射工艺引入的混凝土密实度影响系数和速凝剂强度影响系数,并将二者代入喷射混凝土配合比设计中对其试配强度进行修正,修正后设计的配合比经过验证其28d抗压强度均能很好地满足设计要求。Because the wet blasting law shotcrete its construction craft and mixes in the flash-setting agent the influence,the mixture ratio calculated by the common concrete mixture design method can not meet the requirements of field construction.This article through discovers the spraying craft introduction the concrete compactness influence coefficient and the flash-setting agent intensity influence coefficient,and tries the two substitution shotcrete mixture ratio design in to it to match the intensity to carry on the revision,after the process revises the mixture ratio which designs to confirm its 28d compressive strength to be able to satisfy well the design request.

关 键 词：湿喷法 喷射混凝土 配合比 试配强度 修正 

分 类 号：TU5[建筑科学—建筑技术科学]