Physical and Chemical Characteristics of Incineration Bottom Ash (IBA) from Different Sources and Strength Variability of IBA Recycled Mortar

doi:10.12141/j.issn.1000-565X.240106

Abstract

Abstract:

Municipal solid waste incineration bottom ash (IBA) shows large heterogeneity because of different garbage composition, incineration process and storage conditions. The effective cooperation for one batch of recycled concrete (mortar) may be ineffective for another batch, resulting in large dispersion of recycled concrete (mortar) performance, which limits its application. In order to explore the heterogeneity of IBA from different sources and the strength variability of recycled mortar, this study collected a total of 14 batches of IBA samples from different incinerators and different monthly sources and tested for their physical and chemical properties. And it investigated the workability, compressive strength, and splitting tensile strength of IBA recycled mortar. Statistical analysis was conducted to assess the level of strength variability in IBA recycled mortar. The test results showed that the crushing index, porosity, sulfide, and chloride content of IBA did not meet the specifications for recycled fine aggregates, and there is significant heterogeneity in IBA from different origins. When the recycled cement mortar below M20 strength grade is prepared with a substitution rate of 50% IBA which is from a single incineration plant of different months, the strength is not significantly reduced compared with that of natural aggregate mortar, and the strength variability is similar to that of ordinary recycled aggregate concrete and the standard deviation is also lower than the recommended value of the specification. However, when used to prepare the recycled cement mortar above M20, the reduction in compressive strength was significant (reduced by 23%~32%). Due to higher compressive strength variability of IBA recycled mortars from two different incineration plants, it was not recommended to use IBA recycled mortars from different incineration plants together.

Key words: incineration bottom ash, heterogeneity, recycled mortar, strength, variability

CLC Number:

TU502

CHEN Chunhong, ZHANG Haiyan, ZHANG Yonggang, et al. Physical and Chemical Characteristics of Incineration Bottom Ash (IBA) from Different Sources and Strength Variability of IBA Recycled Mortar[J]. Journal of South China University of Technology(Natural Science Edition), 2024, 52(10): 87-100.

Figures/Tables 17

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References 39

1	中华人民共和国国家统计局．中国统计年鉴［M］．北京：中国统计出版社，2023：147.
2	ASHRAF M S， GHOULEH Z， SHAO Y ．Production of eco-cement exclusively from municipal solid waste incineration residues［J］．Resources，Conservation and Recycling，2019，149：332-342.
3	，固体废物鉴别标准通则［S］．
4	宋丹青，项国圣．城市垃圾炉渣变形特性的三轴试验［J］．华南理工大学学报（自然科学版），2016，44（7）：116-122.
	SONG Dan-qing， XIANG Guo-sheng ．Triaxial tests of deformation characteristics of bottom ash from municipal solid waste incineration［J］．Journal of South China University of Technology （Natural Science Edition），2016，44（7）：116-122.
5	RÜBNER K， HAAMKENS F， LINDE O ．Use of municipal solid waste incinerator bottom ash as aggregate in concrete［J］．Quarterly Journal of Engineering Geology and Hydrogeology，2008，41（4）：459-464.
6	YAO J， SONG H， LI Y，et al ．Mechanism of macro- and microscopic performance of cement mortars influenced by municipal solid waste incineration bottom ash as sand substitution［J］．Construction and Building Materials，2023，397：132317/1-10.
7	TANG P， FLOREA M V A， SPIESZ P，et al ．Characteristics and application potential of municipal solid waste incineration （MSWI） bottom ashes from two waste-to-energy plants［J］．Construction and Building Materials，2015，83：77-94.
8	HOLM O， SIMON F G ．Innovative treatment trains of bottom ash （BA） from municipal solid waste incineration （MSWI） in Germany［J］．Waste Management，2017，59：229-236.
9	RENDEK E， DUCOM G， GERMAIN P ．Influence of waste input and combustion technology on MSWI bottom ash quality［J］．Waste Management，2007，27（10）：1403-1407.
10	LI M， XIANG J， HU S，et al ．Characterization of solid residues from municipal solid waste incinerator［J］. Fuel，2004，83（10）：1397-1405.
11	HUBER F， BLASENBAUER D， ASCHENBRENNER P，et al ．omplete determination of the material composition of municipal solid waste incineration bottom ash［J］．Waste Management，2020，102：677-685.
12	GUPTA G， DATTA M， RAMANA G V，et al ．MSW incineration bottom ash （MIBA） as a substitute to conventional materials in geotechnical applications：a characterization study from India and comparison with literature［J］．Construction and Building Materials，2021，308：124925/1-17.
13	ARM M ．Variation in mechanical properties of MSW incinerator bottom ash：results from triaxial tests［C］∥ WOOLLEY G R，GOUMANS J J J M，WAINWRIGHT P J．Waste Materials in Construction Wascon 2000：Proceedings of the International Conference on the Science and Engineering of Recycling for Environmental Protection．Harrogate：Elsevier，2000：567-578.
14	FORTEZA R，FAR M， SEGUÍ C，et al ．Characterization of bottom ash in municipal solid waste incinerators for its use in road base［J］．Waste Management，2004，24（9）：899-909.
15	ZHU W， TEOH P J， LIU Y，et al ．Strategic utilization of municipal solid waste incineration bottom ash for the synthesis of lightweight aerated alkali-activated materials［J］．Journal of Cleaner Production，2019，235：603-612.
16	ZHU X， YUAN Y， LI L，et al ．Utilize nano-scale metrology techniques to investigate mechanical，structural，and chemical heterogeneity of mixtures contained incineration bottom ash aggregate［J］．Construction and Building Materials，2016，127：627-642.
17	ABBÀ A， COLLIVIGNARELLI M C， SORLINI S，et al ．On the reliability of reusing bottom ash from municipal solid waste incineration as aggregate in concrete［J］．Composites Part B：Engineering，2014，58：502-509.
18	BRAND A S， ROESLER J R， SALAS A ．Initial moisture and mixing effects on higher quality recycled coarse aggregate concrete［J］．Construction and Building Materials，2015，79：83-89.
19	VAN DE WOUW P M F， LOGINOVA E， FLOREA M V A，et al ．Compositional modelling and crushing behaviour of MSWI bottom ash material classes［J］．Waste Management，2020，101：268-282.
20	GHOLAMPOUR A， GANDOMI A H， OZBAK-KALOGLU T ．New formulations for mechanical properties of recycled aggregate concrete using gene expre-ssion programming［J］．Construction and Building Materials，2017，130：122-145.
21	LIU X， JING H， YAN P ．Statistical analysis and unified model for predicting the compressive strength of coarse recycled aggregate OPC concrete［J］．Journal of Cleaner Production，2023，400：136660/1-16.
22	RAZALI N M， WAH Y B ．Power comparisons of Shapiro-Wilk，Kolmogorov-Smirnov，Lilliefors and Anderson-Darling tests［J］．Journal of Statistical Modeling and Analytics，2011，2（1）：21-33.
23	杜修力，金浏．混凝土材料细观单元弹模非均匀统计特性研究［J］．工程力学，2012，29（10）：106-115.
	DU Xiu-li， JIN Liu ．Research on the heterogeneous statistical properties of elastic modulus of a concrete meso-scale unit［J］．Engineering Mechanics，2012，29（10）：106-115.
24	肖建庄，雷斌，袁飚．不同来源再生混凝土抗压强度分布特征研究［J］．建筑结构学报，2008，29（5）：94-100.
	XIAO Jianzhuang， LEI Bin， YUAN Biao ．Compressive strength distribution of recycled aggregate concrete derived from different origins［J］．Journal of Building Structures，2008，29（5）：94-100.
25	HENRY M， HAGIWARA K， NISHIMURA T，et al ．Effect of recycled aggregate quality on variation and estimation of concrete strength［J］．Proceedings of the Japan Concrete Institute，2011，33（1）：1535-1540.
26	肖建庄，雷斌，袁飚．不同再生粗集料混凝土劈裂抗拉强度分布特征［J］．建筑材料学报，2008，11（2）：223-229.
	XIAO Jian-zhuang， LEI Bin， YUAN Biao ．Splitting tensile strength distribution of concrete with different recycled coarse aggregates［J］．Journal of Building Materials，2008，11（2）：223-229.
27	XIAO J， LI J， ZHANG C ．On statistical characteristics of the compressive strength of recycled aggregate concrete［J］．Structural Concrete，2005，6（4）：149-153.
28	PRIYADARSHINI M， GIRI J P ．Use of recycled foundry sand for the development of green concrete and its quantification［J］．Journal of Building Engineering，2022，52：104474/1-9.
29	PACHECO J， de BRITO J， CHASTRE C，et al ．Experimental investigation on the variability of the main mechanical properties of concrete produced with coarse recycled concrete aggregates［J］．Construction and Building Materials，2019，201：110-120.
30	ETXEBERRIA M， VÁZQUEZ E， MARÍ A，et al ．Influence of amount of recycled coarse aggregates and production process on properties of recycled aggregate concrete［J］．Cement and Concrete Research，2007，37（5）：735-742.
31	寇耀文．采用废弃预制构件制备自密实再生骨料混凝土初探［D］．广州：华南理工大学，2021.
32	BRECCOLOTTI M， MATERAZZI A L ．Structural reliability of eccentrically-loaded sections in RC columns made of recycled aggregate concrete［J］．Engineering Structures，2010，32（11）：3704-3712.
33	KOLISKO J， HUNKA P， JUNG K ．A statistical analysis of the modulus of elasticity and compressive strength of concrete C45/55 for pre-stressed precast beams［J］．Journal of Civil Engineering and Architecture，2012，6（11）：1571-1576.
34	DE PAUW C ．Adhesion problems in the recycling of concrete：fragmentation and recycling of reinforced concrete some research results［M］．Boston：Springer，1981：311-319.
35	AÏT-MOKHTAR A， BELARBI R， BENBOUDJEMA F，et al ．Experimental investigation of the variability of concrete durability properties［J］．Cement and Concrete Research，2013，45：21-36.
36	WU S ．Statistical analysis on concrete strength［J］．Modern Civil and Structural Engineering，2018，2（4）：63-71.
37	CHMIELEWSKI T， KONOPKA E ．Statistical evaluations of field concrete strength［J］．Magazine of Concrete Research，1999，51（1）：45-52.
38	ACI 214R-11，Guide to evaluation of strength test results of concrete ［S］．
39	MELCHERS R E， BECK A T ．Structural reliability analysis and prediction［M］．3rd ed．New Jersey：John Wiley & Sons，2018.

集料类别	编号	有效水			附加水	水泥	天然砂	IBA	减水剂
集料类别	编号	W/B = 0.40	W/B = 0.47	W/B = 0.70	附加水	水泥	天然砂	IBA	减水剂
天然砂	NS	232	280	416	0	594	1 337	0	0.00，1.12
不同月份的IBA	IBA-2207	232	280	416	87	594	668	668	0.00，1.12
	IBA-2208				52
	IBA-2209				42
	IBA-2210				44
	IBA-2211				66
	IBA-2212				48
	IBA-2301				52
	IBA-2302				41
	IBA-2303				67
	IBA-2304				33
	IBA-2305				48
	IBA-2306				36
不同焚烧厂的IBA	IBA-A厂		280		66	594	668	668
	IBA-B厂				87
	IBA-C厂				52

集料类别	编号	堆积密度/（kg·m^-3）	表观密度/（kg/m^-3）	空隙率/%	压碎指标/%	饱和面干吸水率/%	微粉含量/%	细度模数
天然砂	NS	1 528	2 626	42	27	0.5	9.5	2.7
不同月份的IBA	IBA-2207	1 145	2 495	54	50	16.4	5.8	3.3
	IBA-2208	1 039	2 529	59	49	9.6	4.3	3.1
	IBA-2209	1 119	2 502	55	35	8.0	4.2	3.3
	IBA-2210	1 156	2 655	56	46	8.1	3.3	3.4
	IBA-2211	1 123	2 551	56	42	12.4	4.7	3.2
	IBA-2212	1 176	2 515	53	37	8.8	4.4	3.4
	IBA-2301	1 035	2 503	59	34	9.6	4.0	3.5
	IBA-2302	1 178	2 556	54	37	7.7	3.9	3.7
	IBA-2303	1 067	2 503	57	45	12.6	4.0	3.2
	IBA-2304	1 164	2 575	55	40	6.3	1.7	3.8
	IBA-2305	1 073	2 541	58	41	8.9	4.2	3.1
	IBA-2306	1 125	2 524	55	41	6.7	4.6	3.1
	平均值	1 117	2 537	56	42	9.6	4.1	3.3
	标准差	51	45	2	5	2.9	1.0	0.2
	变异系数/%	4.6	1.8	3.5	12.4	30.2	23.4	6.9
不同焚烧厂的IBA	IBA-A厂	1 123	2 551	56	42	12.4	4.7	3.2
	IBA-B厂	1 143	2 547	55	36	7.1	4.7	3.4
	IBA-C厂	1 087	2 483	56	39	7.8	6.7	3.2
	平均值	1 118	2 527	56	39	9.1	5.4	3.3
	标准差	28	38	1	3	2.9	1.2	0.1
	变异系数/%	2.5	1.5	1.0	7.7	31.5	21.5	3.5
规范限值	Ⅲ类砂	≥1 200	≥2 250	≤52	≤30		≤10

样本编号	各物质构成比例/%
样本编号	IBA_g	IBA_r	IBA_s	IBA_u
IBA-2207	17.5	21.8	60.0	0.7
IBA-2208	18.0	25.3	55.8	0.9
IBA-2209	25.6	21.5	51.8	1.1
IBA-2210	15.6	19.6	63.9	0.9
IBA-2211	27.6	19.9	51.4	1.1
IBA-2212	27.4	22.9	48.7	1.0
IBA-2301	32.3	15.9	50.9	0.9
IBA-2302	28.4	20.2	50.3	1.1
IBA-2303	19.4	12.3	66.2	2.1
IBA-2304	26.9	16.9	54.6	1.6
IBA-2305	26.8	16.1	56.3	0.8
IBA-2306	28.2	14.8	56.3	0.7
IBA-A厂	27.6	19.9	51.4	1.1
IBA-B厂	28.7	17.2	53.4	0.7
IBA-C厂	25.5	21.3	51.9	1.3

样品	W/B	变异系数/%
样品	W/B	抗压强度	劈裂抗拉强度
再生骨料混凝土^{［24，26］}	0.43	20.00	28.00
	0.55	15.00	27.00
	0.74	14.00	24.00
再生骨料混凝土^［25］	0.30	4.30
	0.50	3.95
	0.70	3.90
文中IBA再生砂浆	0.40	12.60	18.80
	0.47	10.60	14.90
	0.70	8.80	13.90

来源类型	类别	样本数量	平均值/MPa	标准差/MPa	变异系数/%	文献来源
单一来源	50% RAC	100	40.2	3.90	9.7	文献［27］
	50% RAC	100	27.9	0.60	2.0	文献［28］
	50% RAC	39	48.2	2.90	6.0	文献［29］
	50% RAC	20	46.0	4.30	9.3	文献［30］
	50% RAC	30	31.3	1.40	3.9	文献［26］
	50% RAC	30	58.1	3.10	5.4	文献［31］
	50% RAC1	10	55.0	1.50	9.6	文献［32］
	50% RAC2	10	46.0	1.60	3.5	文献［32］
	50% RAC3	20	33.5	3.30	2.8	文献［32］
	IBA-A厂	39	25.4	1.87	7.4	本研究
	IBA-B厂	39	35.4	2.28	6.4	本研究
	IBA-C厂	39	30.5	2.77	9.1	本研究
多个来源	2种来源RAC	10	44.0	1.60	3.8	文献［32］
	2种来源RAC	133	53.3	5.40	10.4	文献［33］
	12种来源RAC	36	41.0	5.00	12.0	文献［34］
	2种来源NC	40	83.8	8.80	10.5	文献［35］
	2种来源NC	20	75.6	8.50	11.3	文献［35］
	2种来源NC	20	68.2	6.10	9.0	文献［35］
	6种来源NC	1 022	46.3	3.70	7.9	文献［36］
	7种来源NC	982	34.1	3.21	9.4	文献［36］
	18种来源NC	1 534	47.8		8.2	文献［37］
	107种来源NC	5 706	37.8		12.5	文献［37］
	IBA-A+B厂	78	30.4	5.47	18.0	本研究
	IBA-A+C厂	78	27.9	3.48	12.5	本研究
	IBA-B+C厂	78	32.9	3.55	10.8	本研究