《砖石工程施工及验收规范》GBJ203—83(以下简称新规范)经城乡建设环境保护部批准,已于1983年9月1日起正式实行。新规范结合我国国情,在调查和试验研究的基础上,对微沫砂浆(水泥砂浆中掺微沫剂)和砂浆在不同温度下的强度增长关系,作了必要的补充和修订。同时,对条文的文字也进行了适当的修改,使之含义更加明确,以利于正确理解和贯彻执行。据了解,自新规范颁发后,不少单位在执行过程中,对上述两个问题提出一些问 The “Code for Construction and Acceptance of Masonry and Stone Projects” GBJ203-83 (hereinafter referred to as the “new code”) was approved by the Ministry of Environmental Protection of Urban and Rural Development and was formally implemented on September 1, 1983. Based on the investigation of China’s national conditions, the new specification, on the basis of investigations and experimental studies, made necessary additions and revisions to the relationship between the strength growth of micro-foam mortar (mixed with micro-foam agent in cement mortar) and mortar at different temperatures. At the same time, the texts of the articles have also been appropriately modified to make the meaning clearer so as to facilitate correct understanding and implementation. According to reports, after the new regulations were issued, many units asked questions about the above two issues during the implementation process.