Study on Properties of Mineral Admixture Modified Copper-Nickel Slag Cementitious Materials
Received date: 2020-06-13
Revised date: 2020-09-02
Online published: 2020-11-05
With the further expansion of demand in the non-ferrous metal industry，the environmental pollution caused by large-scale stacking of copper-nickel smelting slag is becoming more and more serious.There are various forms of secondary utilization of copper-nickel slag in worldwide，including conventional methods such as metal extraction，glass-ceramics generation and ceramics，all of which have the disadvantage of low comprehensive utilization.Therefore，it is of great practical significance to study the construction cementitious materials using copper-nickel slag as the raw material in the secondary utilization of industrial waste.In the preliminary experiment，our research group used NaOH as the alkali activator to conduct the ion dissolution characteristics research of copper-nickel slag and the mechanical properties test of copper-nickel slag cementitious materials.The preliminary results show that the gelation and mechanical properties of copper-nickel slag materials are not ideal under the condition of a single alkali activator，and it is difficult to meet the actual engineering application standards.Therefore，this paper aims to use mineral admixtures to accelerate the activation of modified copper-nickel slag cementitious materials to improve their mechanical properties.After comprehensive consideration，we selected the slag powder and fly ash，which are also industrial waste，as the modifier.The admixture was mixed into the copper-nickel slag separately through the external mixing method to form two experimental groups.The final mixture ratio and water-cement ratio are adjusted and determined according to preliminary experiments.After curing，the compressive strength of each group of samples was tested by a universal testing machine.Then the product composition and modification mechanism of the experimental samples at various ages were analyzed by XRD，FTIR，SEM and other testing methods，and the performance improvement effect of different mineral admixtures was evaluated.The results show that both fly ash and slag powder as admixtures can improve the mechanical properties of copper-nickel slag cementitious materials of various ages by NaOH-activation，and the modification effect of high-doped slag powder is better.The modified cementitious material can basically replace ordinary Portland cement.According to the analysis of sample product and microstructure，the addition of mineral admixtures makes up for the deficiency of insufficient calcium source in the copper-nickel slag，which makes the polymerization reaction under alkaline activation more intense.In addition，the amount of C-S-H gel produced in the samples of the modified experimental group increased significantly，and the amount of iron gel produced decreased，showing a good acceleration excitation effect at all ages.
Tingting ZHANG , Ziyu ZHOU , Lijie GUO , Zhenlin WU , Junnan HAN . Study on Properties of Mineral Admixture Modified Copper-Nickel Slag Cementitious Materials[J]. Gold Science and Technology, 2020 , 28(5) : 678 -687 . DOI: 10.11872/j.issn.1005-2518.2020.05.109
| 1 | Li K Q，Zhang Y Y，Zhao P，et al.Activating of nickel slag and preparing of cementitious materials for backfilling［J］.Advanced Materials Research，2014，936：1624-1629. |
| 2 | 殷志峰，徐从战，王虔虔，等.建材领域资源化利用镍渣的研究与应用［J］.中国水泥，2019（8）：81-85. |
| 2 | Yin Zhifeng，Xu Congzhan，Wang Qianqian，et al.Study and application of utilization of nickel slag as resource in building material field［J］.China Cement，2019（8）：81-85. |
| 3 | 杨志强，高谦，王永前，等.利用金川水淬镍渣尾砂开发新型充填胶凝剂试验研究［J］.岩土工程学报，2014，36（8）：1498-1506. |
| 3 | Yang Zhiqiang，Gao Qian，Wang Yongqian，et al.Experimental study on new filling cementing material using water-hardening nickel slag tailings of Jinchuan mine［J］.Chinese Journal of Geotechnical Engineering，2014，36（8）：1498-1506. |
| 4 | 陈杰，倪文，张静文.以冶金渣为胶凝材料的全尾砂胶结充填料的制备［J］.现代矿业，2014（11）：171-174. |
| 4 | Chen Jie，Ni Wen，Zhang Jingwen.Preparation of cemented whole tailings backlling materials by using iron and steel slag as major row materials of the cementing agent［J］.Modern Mining，2014（11）：171-174. |
| 5 | Al-Jabri K S，Hisada M，Al-Oraimi S K，et al.Copper slag as sand replacement for high performance concrete［J］.Cement and Concrete Composites，2009，31（7）：483-488. |
| 6 | Wu W，Zhang W D，Ma G W.Mechanical properties of copper slag reinforced concrete under dynamic compression［J］.Construction and Building Materials，2009，24（6）：910-917. |
| 7 | Al-Jabri K S，Hisada M，Al-Saidy A H，et al.Performance of high strength concrete made with copper slag as a fine aggregate［J］.Construction and Building Materials，2009，23（6）：2132-2140. |
| 8 | Ahmari S，Zhang L Y，Zhang J H.Effects of activator type/concentration and curing temperature on alkali-activated binder based on copper mine tailings［M］.Journal of Materials Science，2012，47（16）：5933-5945. |
| 9 | Ahmari S，Zhang L Y.Production of eco-friendly bricks from copper mine tailings through geopolymerization［J］.Construction and Building Materials，2012，29（4）：323-331. |
| 10 | Mirhosseini S R，Fadaee M，Tabatabaei R，et al.Mechanical properties of concrete with Sarcheshmeh mineral complex copper slag as a part of cementitious materials［J］.Construction and Building Materials，2017，134：44-49. |
| 11 | Tixier R，Devaguptapu R，Mobasher B.The effect of copper slag on the hydration and mechanical properties of cementitious mixtures［J］.Cement and Concrete Research，1997，27（10）：1569-1580. |
| 12 | Al-Jabri K S，Al-Saidy A H，Taha R.Effect of copper slag as a fine aggregate on the properties of cement mortars and concrete［J］.Construction and Building Materials，2011，25（2）：933-938. |
| 13 | 孔祥文，王丹，隋智通.矿渣胶凝材料的活化机理及高效激发剂［J］.中国资源综合利用，2004，6：22-26. |
| 13 | Kong Xiangwen，Wang Dan，Zhitong Sui.The activated mechanism and the best activator of slag activated cement［J］.China Resources Comprehensive Utilization，2004（6）：22-26. |
| 14 | Puerta-Falla G，Kumar A，Gomez-Zamorano L，et al.The influence of filler type and surface area on the hydration rates of calcium aluminate cement［J］.Construction and Building Materials，2015，96：657-665. |
| 15 | Mirhosseini S R，Fadaee M，Tabatabaei R，et al.Mechanical properties of concrete with Sarcheshmeh mineral complex copper slag as a part of cementitious materials［J］.Construction and Building Materials，2017，134：44-49. |
| 16 | Liu S J，Hu Q Q，Zhao F Q，et al.Utilization of steel slag，iron tailings and fly ash as aggregates to prepare a polymer-modified waterproof mortar with a core-shell styrene-acrylic copolymer as the modifier［J］.Construction and Building Materials，2014，72：15-22. |
| 17 | Gorai B，Jana R K，Premchand.Characteristics and utilisation of copper slag—A review［J］.Resources Conservation snd Recycling，2003，39（4）：299-313. |
| 18 | 肖忠明，王昕，霍春明，等.镍渣水化特性的研究［J］.广东建材，2009，25（9）：9-12. |
| 18 | Xiao Zhongming，Wang Xin，Huo Chunming，et al.Study on the hydration characteristics of nickel slag［J］.Guangdong Building Materials，2009，25（9）：9-12. |
| 19 | 陈天福，王锡千，赵海泉，等.铜矿渣配料烧制硅酸盐水泥熟料的方法：CN1050859A［P］.1991-04-14. |
| 19 | Chen Tianfu，Wang Xiqian，Zhao Haiquan，et al.Method for burning portland cement clinker with copper slag ingredients：CN1050859A ［P］.1991-04-14. |
| 20 | 高术杰，倪文，李克庆，等.用水淬二次镍渣制备矿山充填材料及其水化机理［J］.硅酸盐学报，2013，41（5）：612-619. |
| 20 | Gao Shujie，Ni Wen，Li Keqing，et al.Preparation and hydrated mechanism of mine filling material of water-granulated secondary nickel slag［J］.Journal of the Chinese Ceramic Society，2013，41（5）：612-619. |
| 21 | 王佳佳，刘广宇，倪文，等.激发剂对金川水淬二次镍渣胶结料强度的影响［J］.金属矿山，2013，42（4）：159-163. |
| 21 | Wang Jiajia，Liu Guangyu，Ni Wen，et al.Analysis of the influences of activator on performances of Jinchuan water-granulated secondary Ni slag cemented backfilling materials［J］.Metal Mine，2013，42（4）：159-163. |
| 22 | 晏波，陈涛，肖贤明，等.一种铜硫尾矿中金属铷资源回收的浸出液分离提纯处理工艺：CN201310040833.6［P］.2014-08-06. |
| 22 | Yan Bo，Chen Tao，Xiao Xianming，et al.Separation and purification process for leaching liquid for metal rubidium resource recovery in copper-sulfur tailings：CN20131 0040833.6［P］.2014-08-06. |
| 23 | 郑娟荣，覃维祖，张涛.碱—偏高岭土胶凝材料的凝结硬化性能研究［J］.湖南大学学报（自然科学版），2004，31（4）：60-63，76. |
| 23 | Zhen Juanrong，Qin Weizu，Zhang Tao.The Setting and hardening characteristics of alkali-activated metakaolin cementitious materials［J］.Journal of Hunan University（Natural Science），2004，31（4）：60-63，76. |
| 24 | 金浩亮.不同激发剂对铜镍渣的胶凝活性激发研究［D］.大连：大连理工大学，2019. |
| 24 | Jin Haoliang.Study on the Gelling Activity of Copper-Nickel Slag by Different Activators［D］.Dalian：Dalian University of Technology，2019. |
| 25 | 彭华.诺兰达炉渣综合利用研究（上）［J］.金属矿山，2004，34（1）：58-61. |
| 25 | Peng Hua.Study on comprehensive utilization of Nolanda furnace slags（Part Ⅰ）［J］.Metal Mine，2004，34（1）：58-61. |
/
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