Thermal performance of cement-leca composites for 3D printing

被引：0

作者：

Araujo, Risia A. ^{[1
,2
]}

Martinelli, Antonioe ^{[1
]}

Cabral, Kleber C. ^{[1
,3
,4
]}

Dantas, Andre F. O. A. ^{[5
,6
]}

Silva, Iago F. D. ^{[5
,6
]}

Xavier, Allynson A. C. ^{[6
]}

Santos, Ana L. ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Norte, Postgrad Program Mat Sci & Engn, BR-59078900 Natal, Brazil

[2] Fed Inst Educ, Sci & Technol Rio Grande Norte, Directorate Bldg, BR-59291727 Sao Goncalo do Amarante, Brazil

[3] Fed Univ Semiarid Reg, Dept Engn, BR-59515000 Angicos, Brazil

[4] Univ Fed Rio Grande do Norte, Postgrad Program Civil Engn, BR-59078900 Natal, Brazil

[5] Edmond & Lily Safra Int Inst Neurosci, BR-59280000 Macaiba, Brazil

[6] Potiguar Univ UnP, BR-59082902 Natal, Brazil

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2022年 / 349卷

关键词：

3D concrete printing; Light expanded clay aggregate; Mix design; Squeeze flow rheology; Thermal comfort; BUILDING MATERIAL; FRESH PROPERTIES; FLY-ASH; MIX DESIGN; CONCRETE; CONDUCTIVITY; AGGREGATE; MOISTURE; PARAMETERS; MORTARS;

D O I：

10.1016/j.conbuildmat.2022.128771

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This work aimed to evaluate the influence conventional fine aggregate substitution by LECA (light expanded clay aggregate) evaluating the physical and mechanical properties of lightweight cement-based composites for 3D printing. The mixtures were formulated using a 22 central composite rotatable design (CCRD). The independent factors were the substitution content of sand and the aggregate-to-binder ratio. The results showed that the replacement of sand by LECA increased the thermal insulation without compromising important structural properties such as mechanical strength and porosity. The thermal behavior of the composites was modeled and an equation dependent only on the substitution content was found.

引用

页数：16

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