Hemcrete is an alternative, environmentally‐friendly building material gaining adherents in Great Britain and other European countries. It is an attractive choice as a building material because it is made from a renewable resource, hemp, a hardy plant that is a close, but non‐hallucinogenic relative of marijuana. This plant is relatively easy to cultivate, requires little in the way of pesticides or fertilizers, and almost all parts can be used for various products from paper to textiles to food.
Hemcrete is made from a mixture of lime, water, and the fibrous outer portion of the hemp plant called the “hurd” or “shive”. When mixed, it is worked and placed much like conventional concrete ‐ hence the name. However, that is where the similarities with concrete end. Hemcrete is not comparable to concrete on a strength basis, and is better described as an alternative insulation product. When built into walls of sufficient thickness, Hemcrete offers high thermal efficiency, and has strong claims to being carbon negative. The purpose of this study
was to evaluate this claim of carbon negativity, and to compare these environmentally friendly qualities against conventional fiberglass batt insulation.
Our model was constructed using two identically sized “walls” measuring eight feet square by one foot in depth, one insulated using Hemcrete, and the other using fiberglass. Our study focused on three areas: water usage, cost, and carbon dioxide emissions. We chose water
usage because we wanted to determine the feasibility of using Hemcrete in the Phoenix metropolitan region where water is a troubled resource. Secondly, we wished to evaluate the claim on carbon negativity, so CO2 equivalents throughout the production process were measured. Finally, we wished to know whether Hemcrete could compete on a cost basis with more conventional insulation methods, so we also built in a price comparison.
Since the cultivation of hemp is currently unlawful in the United States, this study can help determine whether these restrictions should be relaxed in order to allow the construction of buildings insulated with Hemcrete.
This analysis revealed key findings in the data that focused on translanguaging practices, negotiation strategies, and performative competence - or the procedural knowledge which focuses on how learners communicate rather than what they communicate. First, the participants displayed a preference toward the separation of languages in written output, adhering to the ideals of linguistic purism, while simultaneously engaging in translanguaging practices via non-linguistic semiotic resources, such as the use of emojis, in their communication. Second, the participants’ self-reported proficiency levels for their writing abilities in Spanish correlated with their use of outside digital resources as a mediation tool. The findings show that, theoretically, the conceptualization of communicative competence must be expanded in order to incorporate the languaging practices of interlocutors in digital contexts. Pedagogically, educators need to support the development of LLs’ digital literacies, or communicative practices that are facilitated by technology, and address the bias toward linguistic purism to help students reap the cognitive benefits offered by translanguaging practices.
The argument in this study is that if WhatsApp is well integrated into the course activities and curriculum of an upper level Spanish university course while abroad, the students will use more innovative ways to communicate, thus, allowing for more intercultural sensitivity growth. In this study, the author analyzed the intercultural sensitivity development and Spanish language use of twelve university level students as they learned Spanish in a 13 week study abroad program abroad in Segovia, Spain. The goal of the study was to gauge how effectively the students communicated with one another while simultaneously measuring their intercultural sensitivity growth to see if the integration of the mobile app, WhatsApp, had any effect on their intercultural learning capabilities. The author analyzed data from twelve learners’ interactions while they studied abroad in a country that they were mostly unfamiliar with. As a result of WhatsApp’s various modalities and capabilities, the findings showed that all of the 12 students showed modest intercultural sensitivity growth along the Developmental Model of Intercultural Sensitivity Scale (Bennett, 1993) to assist them in more effectively communicating in the target language about the host culture.
As the number of heat waves are expected to increase significantly into the future in the U.S. Southwest, new insight is needed into how urban infrastructure can be repositioned to protect people. In the Phoenix metro area infrastructure have largely been deployed over the past half century, during a time when climate change was not a concern. Now, as the county struggles to protect people from heat, there is a need to reassess how existing and new infrastructure can be positioned to reduce health impacts while improving sustainability. Using a neighborhood in Mesa, Arizona as a case study, we assess how changes to transportation infrastructure, building infrastructure, and landscaping can reduce heat exposure. A number of strategies are considered including the optimal deployment of heat refuges, deploying less convective surface materials, and deploying more thermally preferable building materials. The suite of strategies could be considered by cities throughout the Phoenix metro area.
Phoenix is the sixth most populated city in the United States and the 12th largest metropolitan area by population, with about 4.4 million people. As the region continues to grow, the demand for housing and jobs within the metropolitan area is projected to rise under uncertain climate conditions.
Undergraduate and graduate students from Engineering, Sustainability, and Urban Planning in ASU’s Urban Infrastructure Anatomy and Sustainable Development course evaluated the water, energy, and infrastructure changes that result from smart growth in Phoenix, Arizona. The Maricopa Association of Government's Sustainable Transportation and Land Use Integration Study identified a market for 485,000 residential dwelling units in the urban core. Household water and energy use changes, changes in infrastructure needs, and financial and economic savings are assessed along with associated energy use and greenhouse gas emissions.
The course project has produced data on sustainable development in Phoenix and the findings will be made available through ASU’s Urban Sustainability Lab.
In the spring of 2016, The City of Apache Junction partnered with the School of Geographical Sciences and Urban Planning at Arizona State University on three forward-thinking plans for development in Apache Junction. Graduate students in the Urban and Environmental Planning program worked alongside City staff, elected officials and the public to identify opportunities and visions for:
1. Multi-modal access and connectivity improvements for City streets and open space.
2. Downtown development.
3. A master-planned community on state land south of the U.S. 60.
The following sections of the report present Apache Junction’s unique characteristics, current resident demographics, development needs and implementation strategies for each project:
1. Community Profile
2. Trail Connectivity Master Plan
3. Downtown Visioning
4. State Land Visioning
The Trail Connectivity Master Plan optimizes existing trails and wide road shoulders to improve multi-modal connections across the city. The proposed connections emphasize access to important recreation, education and other community facilities for pedestrians, equestrians and bicycles. Trail and lane designs recommend vegetated buffers, wherever possible, to improve traveler safety and comfort. The proposals also increase residents’ interaction with open space along urban-rural trails and park linkages to preserve opportunities to engage with nature. The objectives of the report are accomplished through three goals: connectivity, safety improvements and open space preservation.
Downtown Visioning builds on a large body of conceptual design work for Apache Junction’s downtown area along Idaho Road and Apache Trail. This report identifies three goals: to establish a town center, reestablish the grid systems while maintaining a view of the Superstition Mountains, and create an identity and sense of place for the downtown.
State Land Visioning addresses a tract of land, approximately 25 square miles in area, south of the U.S. 60. The main objective is to facilitate growth and proper development in accordance with existing goals in Apache Junction’s General Plan. This is accomplished through three goals:
1. Develop a foundation for the creation of an economic corridor along US-60 through preliminary market research and land use planning.
2. Create multi-modal connections between existing development north of US-60 and future recreational space northeast of US-60.
3. Maintain a large ratio of open space to developed area that encompasses existing washes and floodplains using a master planned community framework to provide an example for future land use planning.