Strength Analysis of 3D Concrete Printed Mortar Prism Samples

نویسندگان

چکیده

3D 프린팅은 다수의 레이어(layer)를 적층하여 물체를 제작하는 기법으로, 복잡한 형상을 가지는 비교적 쉽게 제작할 수 있다. 이를 건설 산업에 접목한 콘크리트 프린팅(3D concrete printing)은 타설 시 거푸집을 사용하지 않으며, 적은 작업량과 인력이 요구되므로 경제적인 시공이 가능하나, 출력된 프린팅 콘크리트는 일반 대비 다소 낮은 강도가 예상된다. 따라서, 본 연구에서는 시편의 물성을 분석하였다. 시편 출력을 위해 Ultimaker Cura 소프트웨어로 형상 및 출력 경로를 설계하고, 바탕으로 프린터를 제어하는 G-code를 생성하였다. 연구에서 사용된 프린터의 성능과 콘크리트의 적층성, 유동성 등을 고려하여 최적의 배합비를 선정하였고, 출력에 활용하였다. 동일한 치수를 몰드 시편을 함께 제작하여 비교・분석에 사용하였다. 각 물성은 휨강도 시험과 압축강도 시험을 통해 각각의 강도를 측정하였고, 비교・분석하여 확인하였다.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Properties of Cement Mortar and Ultra-High Strength Concrete Incorporating Graphene Oxide Nanosheets

In this work, the effect of graphene oxide nanosheet (GONS) additives on the properties of cement mortar and ultra-high strength concrete (UHSC) is reported. The resulting GONS-cement composites were easy to prepare and exhibited excellent mechanical properties. However, their fluidity decreased with increasing GONS content. The UHSC specimens were prepared with various amounts of GONSs (0-0.03...

متن کامل

Determination of Early Age Mortar and Concrete Strength by Ultrasonic Wave Reflections

The in-situ testing of early age concrete strength is crucial for determining the time of form removal from concrete elements, opening highways to traffic or applying of prestress to steel reinforcement. A nondestructive ultrasonic technique, which measures the reflection loss of ultrasonic transverse waves at a concrete-steel interface, is presented in this paper. The focus is to compare wave ...

متن کامل

Analytical Study on Influence of Mortar-aggregate Interface Character on Concrete Strength by Rbsm

Concrete is a heterogeneity material consisting of mortar and aggregate in meso scale. Evaluation of fracture process in this scale is useful to clarify the material characteristics of concrete. However, analytical approach in this scale has not been carried out enough yet. And in meso scale, mortar-aggregate interface is the weakest part in concrete so that it is considered that its material p...

متن کامل

the effect of taftan pozzolan on the compressive strength of concrete in the environmental conditions of oman sea (chabahar port)

cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...

Strength of Mortar and Concrete as Influenced by Rice Husk Ash: A Review

Due to the pozzolanic reactivity, rice husk ash (RHA) is used as supplementary cementing material in mortar and concrete and has demonstrated significant influence in improving the mechanical and durability properties of mortar and concrete. It has economical and technical advantages to use in concrete. In this paper, a critical review on the influences of RHA on the strength of mortar and conc...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Han'gug jeonsan gujo gonghaghoe nonmunjib

سال: 2022

ISSN: ['2287-2302', '1229-3059']

DOI: https://doi.org/10.7734/coseik.2022.35.4.227