Mix design and fresh properties for high-performance printing concrete

被引：867

作者：

Le, T. T. ^{[1
]}

Austin, S. A. ^{[1
]}

Lim, S. ^{[1
]}

Buswell, R. A. ^{[1
]}

Gibb, A. G. F. ^{[1
]}

Thorpe, T. ^{[1
]}

机构：

[1] Univ Loughborough, Dept Civil & Bldg Engn, Loughborough LE11 3TU, Leics, England

来源：

MATERIALS AND STRUCTURES | 2012年 / 45卷 / 08期

基金：

英国工程与自然科学研究理事会;

关键词：

Additive manufacturing; Build; Concrete; Extrusion; Open time; Printing; EXTRUSION;

D O I：

10.1617/s11527-012-9828-z

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper presents the experimental results concerning the mix design and fresh properties of a high-performance fibre-reinforced fine-aggregate concrete for printing concrete. This concrete has been designed to be extruded through a nozzle to build layer-by-layer structural components. The printing process is a novel digitally controlled additive manufacturing method which can build architectural and structural components without formwork, unlike conventional concrete construction methods. The most critical fresh properties are shown to be extrudability and buildability, which have mutual relationships with workability and open time. These properties are significantly influenced by the mix proportions and the presence of superplasticiser, retarder, accelerator and polypropylene fibres. An optimum mix is identified and validated by the full-scale manufacture of a bench component.

引用

页码：1221 / 1232

页数：12

共 20 条

[1] Effect of absorption of limestone aggregates on strength and slump loss of concrete [J].

Alhozaimy, Abdulrahman M. .

CEMENT & CONCRETE COMPOSITES, 2009, 31 (07) :470-473

[2] Low-volume wet-process sprayed concrete: pumping and spraying [J].

Austin, SA ;

Goodier, CI ;

Robins, PJ .

MATERIALS AND STRUCTURES, 2005, 38 (276) :229-237

[3] The rheological performance of wet-process sprayed mortars [J].

Austin, SA ;

Robins, PJ ;

Goodier, CI .

MAGAZINE OF CONCRETE RESEARCH, 1999, 51 (05) :341-352

[4]

Austin SA, 2002, 56 CONCR SOC UK

[5]

British Standard Institution, 2009, BS EN 12390-3: 2009 Testing Hardened Concrete-Part 3: Compressive strength of test specimens

[6]

British Standards Institute, 1990, BS 1377-9:1990

[7] Freeform construction: Mega-scale rapid manufacturing for construction [J].

Buswell, R. A. ;

Soar, R. C. ;

Gibb, A. G. F. ;

Thorpe, A. .

AUTOMATION IN CONSTRUCTION, 2007, 16 (02) :224-231

[8] Flow conditions of fresh mortar and concrete in different pipes [J].

Jacobsen, Stefan ;

Haugan, Lars ;

Hammer, Tor Arne ;

Kalogiannidis, Evangelos .

CEMENT AND CONCRETE RESEARCH, 2009, 39 (11) :997-1006

[9] Slump improvement mechanism of alkalies in PNS superplasticized cement pastes [J].

Kim, BG ;

Jiang, SP ;

Aïtcin, PC .

MATERIALS AND STRUCTURES, 2000, 33 (230) :363-369

[10]

Le T., 2007, P INT C CONCR PLATF, P339

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