The effects of laser cleaning process on geometrical microstructure of cementitious composites

Agnieszka J. Klemm; Poologanathan Sanjeevan; Piotr Klemm

The effects of laser cleaning process on geometrical microstructure of cementitious composites

Agnieszka J. Klemm, Poologanathan Sanjeevan, Piotr Klemm

Civil Engineering and Environmental Management

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The paper presents part of the larger study on laser cleaning process. A special emphasis is placed on the modification of geometrical microstructure of cementitious composites resulting from cleaning process. A wide range of samples characterised with different internal microstructures, surface roughness, and moisture content were subjected to laser cleaning process, and a subsequent assessment. Removal of mortar, cracks and glassy patches were the characteristic features of all laser-cleaned areas. Systematic analysis of surface modifications resulting from laser cleaning confirmed a strong relationship between initial roughness of surfaces and their end conditions. An increase in initial surface roughness leads to more pronounced alterations in roughness and reduced tendency towards crack formation.

Original language	English
Title of host publication	Brittle Matrix Composites 9
Editors	A.M. Brandt, J. Olek, I.H. Marshall
Publisher	Woodhead Publishing Limited
Pages	323-334
Number of pages	12
ISBN (Print)	9781845697754
Publication status	Published - Jan 2009

Keywords

laser cleaning
cementitious composite
construction materials

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Klemm, A. J., Sanjeevan, P., & Klemm, P. (2009). The effects of laser cleaning process on geometrical microstructure of cementitious composites. In A. M. Brandt, J. Olek, & I. H. Marshall (Eds.), Brittle Matrix Composites 9 (pp. 323-334). Woodhead Publishing Limited. http://researchonline.gcu.ac.uk/bne/195

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title = "The effects of laser cleaning process on geometrical microstructure of cementitious composites",

abstract = "The paper presents part of the larger study on laser cleaning process. A special emphasis is placed on the modification of geometrical microstructure of cementitious composites resulting from cleaning process. A wide range of samples characterised with different internal microstructures, surface roughness, and moisture content were subjected to laser cleaning process, and a subsequent assessment. Removal of mortar, cracks and glassy patches were the characteristic features of all laser-cleaned areas. Systematic analysis of surface modifications resulting from laser cleaning confirmed a strong relationship between initial roughness of surfaces and their end conditions. An increase in initial surface roughness leads to more pronounced alterations in roughness and reduced tendency towards crack formation.",

keywords = "laser cleaning, cementitious composite, construction materials",

author = "Klemm, {Agnieszka J.} and Poologanathan Sanjeevan and Piotr Klemm",

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AU - Klemm, Agnieszka J.

AU - Sanjeevan, Poologanathan

AU - Klemm, Piotr

N1 - <p>Paper presented at the 9th International Symposium on Brittle Matrix Composites (BMC9), Warsaw, Poland, 25-28 October 2009.</p>

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N2 - The paper presents part of the larger study on laser cleaning process. A special emphasis is placed on the modification of geometrical microstructure of cementitious composites resulting from cleaning process. A wide range of samples characterised with different internal microstructures, surface roughness, and moisture content were subjected to laser cleaning process, and a subsequent assessment. Removal of mortar, cracks and glassy patches were the characteristic features of all laser-cleaned areas. Systematic analysis of surface modifications resulting from laser cleaning confirmed a strong relationship between initial roughness of surfaces and their end conditions. An increase in initial surface roughness leads to more pronounced alterations in roughness and reduced tendency towards crack formation.

AB - The paper presents part of the larger study on laser cleaning process. A special emphasis is placed on the modification of geometrical microstructure of cementitious composites resulting from cleaning process. A wide range of samples characterised with different internal microstructures, surface roughness, and moisture content were subjected to laser cleaning process, and a subsequent assessment. Removal of mortar, cracks and glassy patches were the characteristic features of all laser-cleaned areas. Systematic analysis of surface modifications resulting from laser cleaning confirmed a strong relationship between initial roughness of surfaces and their end conditions. An increase in initial surface roughness leads to more pronounced alterations in roughness and reduced tendency towards crack formation.

KW - laser cleaning

KW - cementitious composite

KW - construction materials

M3 - Conference contribution

SN - 9781845697754

SP - 323

EP - 334

BT - Brittle Matrix Composites 9

A2 - Brandt, A.M.

A2 - Olek, J.

A2 - Marshall, I.H.

PB - Woodhead Publishing Limited

ER -