STTR Phase I: Lightweight Concrete Interlocking Masonry Blocks

STTR 第一阶段：轻质混凝土联锁砌块

• 批准号: 2014964
• 负责人: BRADFORD WELLS
• 金额: $ 22.5万
• 依托单位: CLC GLOBAL-USA
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-05-01 至 2022-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2014964&HistoricalAwards=false
• 关键词: STTR; Phase; Lightweight; Concrete; Interlocking

The broader impact/commercial potential of this Small Business Technology Transfer (STTR) Phase I project is to improve job-site safety of dry-stacking installation of masonry walls without binding mortar through the use of novel Aerated Interlocking Masonry Units (AIMU). The AIMU multi-component wall system combines the advantages of wood and those of concrete and is potentially applicable for mid-rise multi-family housing, a key component of affordable housing stock in the US and worldwide. These AIMUs can be laid quickly, safely, and accurately, reducing time and labor for cost-effective construction in the US and globally. The proposed construction platform will improve durability and offer lower lifetime costs than standard wood-based wall construction.This Small Business Technology Transfer (STTR) Phase I project will further develop a construction technology using masonry blocks via dry-stacking without binding mortar. Aerated Interlocking Masonry Units (AIMU) are made of cellular lightweight concrete (CLC) and an activated adhesion. The proposed work will conduct testing to confirm the AIMU's ability to fill incursions and block irregularities, evaluate interfacial shear resistance between the interlocking features, and evaluate the interfacial adhesion activated through pressure or moisture. These fundamental properties are critical to resolving the primary barriers for translation of dry-stack masonry construction technology. The project will also demonstrate rapid outdoor dry-stacking AIMU installation.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

这个小企业技术转让（STTR）第一阶段项目的更广泛的影响/商业潜力是通过使用新型充气联锁砌块（AIMU）来提高无粘结砂浆的砌体墙干堆安装的工作现场安全性。AIMU多组件墙系统结合了木材和混凝土的优点，可能适用于中层多户住宅，这是美国和全球经济适用房的关键组成部分。 这些AIMU可以快速，安全，准确地铺设，减少时间和劳动力，在美国和全球范围内实现经济高效的建设。 与标准的木基墙体建筑相比，拟议的建筑平台将提高耐久性，并提供更低的寿命成本。这个小企业技术转让（STTR）第一期项目将进一步开发一种使用砌块的建筑技术，通过干式堆叠而无需粘合砂浆。 加气联锁砌块（AIMU）是由蜂窝轻质混凝土（CLC）和活性粘合剂制成的。拟议的工作将进行测试，以确认AIMU的能力，以填补入侵和块的不规则性，评估界面之间的剪切阻力联锁功能，并评估通过压力或水分激活的界面粘合。这些基本特性对于解决干砌砌体施工技术转化的主要障碍至关重要。该项目还将展示快速室外干式堆垛AIMU安装。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。