Sustainability in construction works: Reuse of sludge from tunnel boring in lime mortars
Source abstract
Abstract
[EN]This study is based on reuse of sludge from tunnel boring for the manufacture of mortars with calcium hydroxide and their possible application in construction. Three samples have been tested with different percentages of sludge from tunnel boring obtaining high consistency. This percentage was used to produce two types of mortars, one with limestone-type aggregates and the other with siliceous-type material, which were then subjected to compression and flexural tests. The analysis shows that the use of these sludge, with calcium hydroxide and siliceous-type aggregates, helps to improve the mortars? properties and increase their flexural strength to values above 4 MPa, which could be reused as a coating for underground work and road construction as long as its complies with the standard.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Concrete and Cement Materials Research · Recycling and utilization of industrial and municipal waste in materials production · Recycled Aggregate Concrete Performance
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (22)
Show source-provided references
1. Properties of lime–metakolin mortars for the restoration of historic masonries10.1016/j.clay.2011.04.005 ↗
2. Solid-state NMR and FTIR studies of lime stabilized montmorillonitic and lateritic clays10.1016/j.clay.2012.05.006 ↗
3. ASTM C144–11 · 2011
4. ASTM C270-14a · 2014
5. ASTM C305-14 · 2014
6. ASTM C348–14 · 2014
7. ASTM D4318–10e1 · 2010
8. Stabilization of sludge from earth pressure balance for use in earth embankments10.1016/j.clay.2011.04.019 ↗
9. Chapter 1 General Introduction: Clays, Clay Minerals, and Clay Science10.1016/S1572-4352(05)01001-9 ↗
10. Lime stabilization of bentonite from tunnel boring machine10.1016/j.clay.2010.11.028 ↗
11. Campanian Ignimbrite as raw material for lightweight aggregates10.1016/j.clay.2006.11.004 ↗
12. Clay content of argillites: influence of cement based mortars10.1016/j.clay.2008.09.009 ↗
13. Widening of line 10 of the Madrid Underground. Positive environmental impact
14. Strength and compressibility of lightweight cemented clays10.1016/j.clay.2012.08.006 ↗
15. Characterisation of induced discontinuities in the Boom Clay around the underground excavations (URF, Mol, Belgium)10.1016/j.clay.2003.12.017 ↗
16. Pakistani bentonite in mortars and concrete as low cost construction material10.1016/j.clay.2009.06.011 ↗
17. Characterization of a mortar made with cement and slag vitrified from a MSWI ash-mix and CMP sludge10.1016/j.conbuildmat.2012.07.083 ↗
18. Recycling CMP sludge as a resource in concrete10.1016/j.conbuildmat.2011.11.019 ↗
19. Analysis of tetramethylammonium–montmorillonite and retention of toluene from aqueous solution10.1016/j.clay.2009.06.013 ↗
20. The effect of some physical-chemical and mineralogical properties on the Na2CO3 activation of Argentine bentonites10.1016/0169-1317(91)90004-S ↗
21. Evaluation of grout behind the lining of shield tunnels using ground penetrating radar in the Shanghai Metro Line China.10.1088/1742-2132/4/3/S03 ↗
22. The new clay mud and its improvement effects of tunnels10.1016/j.clay.2013.02.021 ↗