掺镍铁渣-矿渣复合微粉混凝土配合比设计_《混凝土与水泥制品》杂志社

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发布时间：2020-01-06 00:00:00

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掺镍铁渣-矿渣复合微粉混凝土配合比设计

Mix Proportion Design of Nickel-Iron Slag-Slag Composite Micronized Concrete

２０19年第12期

镍铁渣-矿渣复合微粉；配合比设计；复合水泥胶砂；保罗米公式

Compound admixture of ferronickel slag-slag micro powder; Mix design; Composite cement mortar; Bolomy＇s formula

２０19年第12期

10.19761/j.1000-4637.2019.12.007.06

福建省科技计划项目（2016H61010017）

祁皑，刘旭宏，杨绵越，李征

福州大学土木工程学院，350116

祁皑，刘旭宏，杨绵越，李征

镍铁渣是镍或镍铁合金冶炼过程中排出的固体废弃物[1]，经水淬形成粒化炉渣。采用高炉生产工艺每生产1 t纯镍需要排出14 t左右的废渣[2]。我国镍铁渣年产量在3 000万t以上，成为继矿渣、钢渣、赤泥之后第四大冶炼工业废渣[3-4]。目前对于镍铁渣的处理多为简单堆存和填埋，造成了资源的浪费和环境污染。因此，开发镍铁渣的再利用具有重要意义。

祁皑,刘旭宏,杨绵越,等.掺镍铁渣-矿渣复合微粉混凝土配合比设计[J].混凝土与水泥制品,2019(12):7-11.

QI A,LIU X H,YANG M Y,et al.Mix Proportion Design of Concrete Containing Compound Admixture of Ferronickel Slag-slag Micro Powder[J].China Concrete and Cement Products,2019(12):7-11.

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摘要：以配制强度等级为C30、C35，坍落度达100~140 mm的掺镍铁渣-矿渣复合微粉混凝土（镍-矿混凝土）为例，进行了镍-矿混凝土的配合比设计。首先，测定了镍铁渣-矿渣复合微粉掺量为10%~50%的复合水泥胶砂的28d抗压强度，定义了不同复合微粉掺量下的复合水泥强度折减系数。然后，以普通混凝土配合比设计方法中的保罗米公式为基准，采用复合水泥强度折减系数对其进行修正，初步计算了复合微粉掺量为10%~50%的镍-矿混凝土配合比。最后，经过试配和调整，配制出了满足强度和坍落度要求的C30、C35镍-矿混凝土，从而确定了最终配合比。试验结果表明：对于镍-矿混凝土，该配合比设计方法是可行的。 Abstract: Simply replacing cement with ferronickel slag powder of the equal mass is often adverse to maintaining the concrete strength. Therefore, mix design of concrete containing a compound admixture of ferronickel slag-slag micro (F-S) powder (referred as F-S concrete hereafter) was investigated. The target concrete strength grade was C30 and C35, and the specified slump was 100~140 mm. This mix design consisted of the following three steps. Firstly, according to the tested 28 d compressive strength of the composite cement mortar with F-S powder content ranging from 10% to 50%, the strength reduction factor of composite cement mortar with different F-S powder content was defined. Secondly, the preliminary mix proportions of F-S concrete were calculated by the modified Bolomy’s formula. Thirdly, after several rounds of trial and adjustment, the final mix proportions of the target C30 and C35 F-S concrete were determined. Results from the experimental tests confirm the applicability of the proposed method to design the mix proportions of F-S concrete.

英文名 : Mix Proportion Design of Nickel-Iron Slag-Slag Composite Micronized Concrete

刊期 : ２０19年第12期

关键词 : 镍铁渣-矿渣复合微粉；配合比设计；复合水泥胶砂；保罗米公式

Key words : Compound admixture of ferronickel slag-slag micro powder; Mix design; Composite cement mortar; Bolomy＇s formula

刊期 : ２０19年第12期

DOI : 10.19761/j.1000-4637.2019.12.007.06

文章编号 :

基金项目 : 福建省科技计划项目（2016H61010017）

作者 : 祁皑，刘旭宏，杨绵越，李征

单位 : 福州大学土木工程学院，350116

祁皑，刘旭宏，杨绵越，李征

祁皑,刘旭宏,杨绵越,等.掺镍铁渣-矿渣复合微粉混凝土配合比设计[J].混凝土与水泥制品,2019(12):7-11.

QI A,LIU X H,YANG M Y,et al.Mix Proportion Design of Concrete Containing Compound Admixture of Ferronickel Slag-slag Micro Powder[J].China Concrete and Cement Products,2019(12):7-11.

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摘要

参数

结论

参考文献

引用本文

摘要：以配制强度等级为C30、C35，坍落度达100～140 mm的掺镍铁渣-矿渣复合微粉混凝土（镍-矿混凝土）为例，进行了镍-矿混凝土的配合比设计。首先，测定了镍铁渣-矿渣复合微粉掺量为10%～50%的复合水泥胶砂的28d抗压强度，定义了不同复合微粉掺量下的复合水泥强度折减系数。然后，以普通混凝土配合比设计方法中的保罗米公式为基准，采用复合水泥强度折减系数对其进行修正，初步计算了复合微粉掺量为10%～50%的镍-矿混凝土配合比。最后，经过试配和调整，配制出了满足强度和坍落度要求的C30、C35镍-矿混凝土，从而确定了最终配合比。试验结果表明：对于镍-矿混凝土，该配合比设计方法是可行的。
Abstract: Simply replacing cement with ferronickel slag powder of the equal mass is often adverse to maintaining the concrete strength. Therefore, mix design of concrete containing a compound admixture of ferronickel slag-slag micro (F-S) powder (referred as F-S concrete hereafter) was investigated. The target concrete strength grade was C30 and C35, and the specified slump was 100～140 mm. This mix design consisted of the following three steps. Firstly, according to the tested 28 d compressive strength of the composite cement mortar with F-S powder content ranging from 10% to 50%, the strength reduction factor of composite cement mortar with different F-S powder content was defined. Secondly, the preliminary mix proportions of F-S concrete were calculated by the modified Bolomy’s formula. Thirdly, after several rounds of trial and adjustment, the final mix proportions of the target C30 and C35 F-S concrete were determined. Results from the experimental tests confirm the applicability of the proposed method to design the mix proportions of F-S concrete.

关键词:

镍铁渣-矿渣复合微粉；配合比设计；复合水泥胶砂；保罗米公式

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