Hempcrete - modern solutions for green buildings

Lupu, Mihaela Luminiţa; Isopescu, Dorina Nicolina; Baciu, I-R; Maxineasa, Sebastian George; Pruna, L; Gheorghiu, R

doi:10.1088/1757-899x/1242/1/012021

Cited by 3 publications

(2 citation statements)

References 26 publications

(27 reference statements)

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“…Hempcrete is a form of concrete that is made with hemp shives, the part of the stem not used for fiber production. Hempcrete has been found to have better sound insulation properties and an ability to regulate relative humidity inside of buildings (Lupu et al 2022), as well as being a potential carbon sink to help reduce the causes of climate change (Kumar et al 2021).…”

Section: Discussionmentioning

confidence: 99%

The Desert Whale: the boom and bust of hemp in Arizona

Stats,

Sweat,

Masson

et al. 2023

J Cannabis Res

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Background This paper examines the factors that led to the collapse of hemp grown for cannabidiol (CBD) in Arizona, the United States of America (USA), and particularly in Yuma County, which is a well-established agricultural area in the state. Methods This research uses a combination of mapping analysis along with a survey of hemp farmers to assess the reasons why the hemp industry collapsed as well as to foster solutions to these problems. Results In 2019, 5430 acres were sown with hemp seed in Arizona with 3890 acres inspected by the state to determine if they could be harvested. By 2021, there were only 156 acres planted, and only 128 of those acres were inspected by the state for compliance. (Crop mortality accounts for the difference between acres sown and acres inspected.) Conclusions A lack of knowledge about the hemp life cycle greatly contributed to the failure of high CBD hemp crops in Arizona. Other problems included noncompliance with tetrahydrocannabinol limits, poor sources for seeds and inconsistent genetics of the hemp varieties sold to farmers, and diseases that hemp plants were susceptible to such as Pythium crown and root rot and beet curly top virus. Addressing these factors will go far in making hemp a profitable and widespread crop in Arizona. Additionally, hemp grown for other traditional uses (e.g., fiber or seed oil) as well as new applications (e.g., microgreens, hempcrete, and phytoremediation) offers other pathways for successful hemp agriculture in this state.

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Section: Discussionmentioning

confidence: 99%

The Desert Whale: the boom and bust of hemp in Arizona

Stats,

Sweat,

Masson

et al. 2023

J Cannabis Res

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“…Slovenia's annual increase in the percentage of felling's per hectare of agricultural land can be attributed to its versatile use and ease of production. Hemp is a very tolerant plant that grows well in most growing conditions, which has led to its widespread distribution throughout the world (Lazič; Stanwix and Sparrow; Updike; Lupu et al 2022).…”

Section: Introductionmentioning

confidence: 99%

Hempcrete housing as a sustainable restoration solution at Novo Mesto, Slovenia: Building towards carbon neutrality performances

Mani,

Zorec

2024

Preprint

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Hempcrete is especially attractive to the self-builders and the community groups, because of the relatively low-tech nature of the construction method. It’s now a greater need for the scientific research towards this bio-composite material on its thermal, hygric and carbon sequestration performances. This commercial case study reports the restoration of 80 years old traditional timber structure by hempcrete technology in two phases: 1. Characterization of raw materials adopted for restoration, secondly life cycle analysis performed on the hempcrete and its costing compared with conventional construction. The Slovenian National Building & Civil Engineering Institute (ZAG) reported on the characterization results with the standard U value of 0.085 W/m2K and 0.25 MPa as mechanical strength for the volume hemp lime mix of 260-80Kg/m3. European KIC Climate performed LCA through SIMAPRO software for hemp lime “cradle to door” results revealed the energy consumption, resource cost comparison and carbon neutrality with respect to the conventional methods. Use of Hemp lime predicted the lowest GHG emissions and also to reuse and restore the structure with minimal environmental impacts.

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Eco-ableism and access circularity in natural building

Schleck,

Ben-Alon

2024

Frontiers of Architectural Research

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Hempcrete - modern solutions for green buildings

Cited by 3 publications

References 26 publications

The Desert Whale: the boom and bust of hemp in Arizona

The Desert Whale: the boom and bust of hemp in Arizona

Hempcrete housing as a sustainable restoration solution at Novo Mesto, Slovenia: Building towards carbon neutrality performances

Eco-ableism and access circularity in natural building

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