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Effect of Mortar Properties on Strength of Masonry

Description: Report issued by the National Bureau of Standards over studies conducted on the effects of mortar on the strength of masonry. Materials, methods, and results are presented and discussed. This report includes tables, illustrations, and photographs.
Date: November 20, 1961
Creator: Fishburn, Cyrus C.
Partner: UNT Libraries Government Documents Department

Concrete and masonry : repairs and utilities.

Description: "This Technical Manual describes materials, equipment, and methods used in new concrete and masonry work at Army posts. It also covers repair and maintenance of existing concrete and masonry."
Date: October 1946
Creator: United States. War Department.
Partner: UNT Libraries Government Documents Department

Finite element analysis of the Arquin-designed CMU wall under a dynamic (blast) load.

Description: The Arquin Corporation designed a CMU (concrete masonry unit) wall construction and reinforcement technique that includes steel wire and polymer spacers that is intended to facilitate a faster and stronger wall construction. Since the construction method for an Arquin-designed wall is different from current wall construction practices, finite element computer analyses were performed to estimate the ability of the wall to withstand a hypothetical dynamic load, similar to that of a blast from a nearby explosion. The response of the Arquin wall was compared to the response of an idealized standard masonry wall exposed to the same dynamic load. Results from the simulations show that the Arquin wall deformed less than the idealized standard wall under such loading conditions. As part of a different effort, Sandia National Laboratories also looked at the relative static response of the Arquin wall, results that are summarized in a separate SAND Report.
Date: December 1, 2008
Creator: Lopez, Carlos & Petti, Jason P.
Partner: UNT Libraries Government Documents Department

Church of La Madeleine

Description: View of façade detail of the Church of La Madeleine, showing the pediment sculpture and entablature, built during the Neoclassical Revival Period.
Access: This item is restricted to UNT Community Members. Login required if off-campus.
Date: 1807/1828
Creator: Vignon, Pierre
Location Info:
Partner: UNT College of Visual Arts + Design

Evaluation of Two CEDA Weatherization Pilot Implementations of an Exterior Insulation and Over-Clad Retrofit Strategy for Residential Masonry Buildings in Chicago

Description: This project examines the implementation of an exterior insulation and over-clad strategy for brick masonry buildings in Chicago. The strategy was implemented at a free-standing two story two-family dwelling and a larger free-standing multifamily building. The test homes selected for this research represent predominant housing types for the Chicago area. High heating energy use typical in these buildings threaten housing affordability. Uninsulated mass masonry wall assemblies also have a strongly detrimental impact on comfort. Significant changes to the performance of masonry wall assemblies is generally beyond the reach of typical weatherization (Wx) program resources. The Community and Economic Development Association of Cook County, Inc. (CEDA) has secured a Sustainable Energy Resources for Consumers (SERC) innovation grant sponsored by the United States Department of Energy (DOE). This grant provides CEDA the opportunity to pursue a pilot implementation of innovative approaches to retrofit in masonry wall enclosures. The exterior insulation and over-clad strategy implemented through this project was designed to allow implementation by contractors active in CEDA weatherization programs and using materials and methods familiar to these contractors. The retrofit measures are evaluated in terms of feasibility, cost and performance. Through observations of the strategies implemented, the research described in this report identifies measures critical to performance as well as conditions for wider adoption. The research also identifies common factors that must be considered in determining whether the exterior insulation and over-clad strategy is appropriate for the building.
Date: August 1, 2013
Creator: Neuhauser, K.
Partner: UNT Libraries Government Documents Department

Finite element analyses of continuous filament ties for masonry applications : final report for the Arquin Corporation.

Description: Finite-element analyses were performed to simulate the response of a hypothetical vertical masonry wall subject to different lateral loads with and without continuous horizontal filament ties laid between rows of concrete blocks. A static loading analysis and cost comparison were also performed to evaluate optimal materials and designs for the spacers affixed to the filaments. Results showed that polypropylene, ABS, and polyethylene (high density) were suitable materials for the spacers based on performance and cost, and the short T-spacer design was optimal based on its performance and functionality. Simulations of vertical walls subject to static loads representing 100 mph winds (0.2 psi) and a seismic event (0.66 psi) showed that the simulated walls performed similarly and adequately when subject to these loads with and without the ties. Additional simulations and tests are required to assess the performance of actual walls with and without the ties under greater loads and more realistic conditions (e.g., cracks, non-linear response).
Date: August 1, 2008
Creator: Quinones, Armando, Sr. (Arquin Corporation, La Luz, NM); Bibeau, Tiffany A. & Ho, Clifford Kuofei
Partner: UNT Libraries Government Documents Department

Determining Cost-Effective Insulation Levels for Masonry and Wood-Frame Walls in New Single-Family Housing

Description: Report issued by the National Bureau of Standards over calculations for cost-effective insulation in single-family housing. Different calculations are made with regards to location, energy pricing, heating and cooling equipment available, and financial criteria. This report includes tables, illustrations, and photographs.
Date: August 1981
Creator: Petersen, Stephen R.; Barnes, Kimberly A. & Peavy, Bradley A.
Partner: UNT Libraries Government Documents Department

Expert Meeting Report: Interior Insulation Retrofit of Mass Masonry Wall Assemblies

Description: The Building Science Consortium held an Expert Meeting on Interior Insulation Retrofit of Mass Masonry Wall Assemblies on July 30, 2011 at the Westford Regency Hotel in Westford, MA. This report outlines the extensive information that was presented on assessment of risk factors for premature building deterioration due to interior insulation retrofits, and methods to reduce such risks.
Date: February 1, 2012
Creator: Ueno, K. & Van Straaten, R.
Partner: UNT Libraries Government Documents Department

Geothermal Mill Redevelopment Project in Massachusetts

Description: Anwelt Heritage Apartments, LLC redeveloped a 120-year old mill complex into a mixed-use development in a lower-income neighborhood in Fitchburg, Massachusetts. Construction included 84 residential apartments rented as affordable housing to persons aged 62 and older. The Department of Energy (“DOE”) award was used as an essential component of financing the project to include the design and installation of a 200 ton geothermal system for space heating and cooling.
Date: March 17, 2009
Creator: Vale, A.Q.
Partner: UNT Libraries Government Documents Department

Measure Guideline: Internal Insulation of Masonry Walls

Description: This measure guideline provides recommendations for interior insulation assemblies that control interstitial condensation and durability risks; recommendations for acceptable thermal performance are also provided. An illustrated guide of high-risk exterior details (which concentrate bulk water), and recommended remediation details is provided. This is followed by a recommended methodology for risk assessment of a masonry interior insulation project: a series of steps are suggested to assess the risks associated with this retrofit, with greater certainty with added steps.
Date: July 1, 2012
Creator: Straube, J. F.; Ueno, K. & Schumacher, C. J.
Partner: UNT Libraries Government Documents Department

56th and Walnut: A Philly Gut Rehab Development; Philadelphia, Pennsylvania (Fact Sheet)

Description: Load-bearing brick-masonry multifamily buildings are prevalent in urban areas across much of the Northeast and mid-Atlantic. In most instances, these buildings are un-insulated unless they have been renovated within the past two decades. Affordable housing capital budgets typically limit what can be spent and energy improvements often take a back seat to basic capital improvements such as interior finish upgrades and basic repairs. The Consortium for Advanced Residential Buildings (CARB) is researching cost effective solution packages for significant energy efficiency and indoor air-quality improvements in these urban buildings. To explore how these low-cost retrofits can effectively integrate energy efficiency upgrades, CARB partnered with Columbus Property Management and Development, Inc. on a community-scale gut rehabilitation project located at 56th Street and Walnut Street in Philadelphia, consisting of 32 units in eleven 3-story buildings. These buildings were built in the early 1900s using stone foundations and solid brick-masonry walls. They were renovated in the 1990s to have interior light gauge metal framing with R-13 batt in the above-grade walls, induced-draft furnaces, and central air conditioning.
Date: November 1, 2013
Partner: UNT Libraries Government Documents Department

Guide to Closing and Conditioning Ventilated Crawlspaces

Description: This how-to guide explains the issues and concerns with conventional ventilated crawlspaces and provides prescriptive measures for improvements that will create healthier and more durable spaces. The methods described in this guide are not the only acceptable ways to treat a crawlspace but represent a proven strategy that works in many areas of the United States. The designs discussed in this guide may or may not meet the local building codes and as such will need to be researched before beginning the project.
Date: January 1, 2013
Creator: Dickson, B.
Partner: UNT Libraries Government Documents Department

Leveraging Limited Scope for Maximum Benefit in Occupied Renovation of Uninsulated Cold Climate Multifamily Housing

Description: This project examines a large-scale renovation project within a 500 unit, 1960's era subsidized urban housing community. This research focuses on the airflow control and window replacement measures implemented as part of the renovations to the low-rise apartment buildings. The window replacement reduced the nominal conductive loss of the apartment enclosure by approximately 15%; air sealing measures reduced measured air leakage by approximately 40% on average.
Date: March 1, 2012
Creator: Neuhauser, K.; Bergey, D. & Osser, R.
Partner: UNT Libraries Government Documents Department

56th & Walnut - A Philly Gut Rehab Development

Description: Load-bearing brick-masonry multifamily buildings are prevalent in urban areas across much of the Northeast and mid-Atlantic. In most instances, these buildings are uninsulated unless they have been renovated within the past two decades. Affordable housing capital budgets typically limit what can be spent and energy improvements often take a back seat to basic capital improvements such as interior finish upgrades and basic repairs. The Consortium for Advanced Residential Buildings is researching cost-effective solution packages for significant energy efficiency and indoor air-quality improvements in these urban buildings.
Date: July 1, 2013
Creator: Puttagunta, S.; Faakye, O. & Zoeller, W.
Partner: UNT Libraries Government Documents Department

Measure Guideline: Installing Rigid Foam Insulation on the Interior of Existing Brick Walls

Description: This measure guideline provides information on an effective method to insulate the interior of existing brick masonry walls with extruded polystyrene (XPS) insulation board. The guide outlines step-by-step design and installation procedures while explaining the benefits and tradeoffs where applicable. The authors intend that this document be useful to a varied audience that includes builders, remodelers, contractors and homeowners.
Date: June 1, 2012
Creator: Natarajan, H.; Klocke, S. & Puttagunta, S.
Partner: UNT Libraries Government Documents Department

[News Script: News briefs]

Description: Script from the WBAP-TV station in Fort Worth, Texas, covering three news stories. The first story is about a bricklaying contest at a technical college in Fort Worth. The second story is about the premiere of "Follow the Sun," a film about Fort Worth golfer Ben Hogan. The third story is about the first city election in Dallas using a voting machine for absentee balloting.
Date: March 20, 1951
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

Retrofit of a Multifamily Mass Masonry Building in New England

Description: Merrimack Valley Habitat for Humanity (MVHfH) has partnered with Building Science Corporation to provide high performance affordable housing for 10 families in the retrofit of an existing brick building (a former convent) into condominiums. The research performed for this project provides information regarding advanced retrofit packages for multi-family masonry buildings in Cold climates. In particular, this project demonstrates safe, durable, and cost-effective solutions that will potentially benefit millions of multi-family brick buildings throughout the East Coast and Midwest (Cold climates). The retrofit packages provide insight on the opportunities for and constraints on retrofitting multifamily buildings with ambitious energy performance goals but a limited budget. The condominium conversion project will contribute to several areas of research on enclosures, space conditioning, and water heating. Enclosure items include insulation of mass masonry building on the interior, airtightness of these types of retrofits, multi-unit building compartmentalization, window selection, and roof insulation strategies. Mechanical system items include combined hydronic and space heating systems with hydronic distribution in small (low load) units, and ventilation system retrofits for multifamily buildings.
Date: August 1, 2013
Creator: Ueno, K.; Kerrigan, P.; Wytrykowska, H. & Van Straaten, R.
Partner: UNT Libraries Government Documents Department

Finite element analyses of continuous filament ties for masonry applications:final report for the Arquin Corporation.

Description: Finite-element analyses were performed to simulate the response of a hypothetical masonry shear wall with and without continuous filament ties to various lateral loads. The loads represented three different scenarios: (1) 100 mph wind, (2) explosive attack, and (3) an earthquake. In addition, a static loading analysis and cost comparison were performed to evaluate optimal materials and designs for the spacers affixed to the filaments. Results showed that polypropylene, ABS, and polyethylene (high density) were suitable materials for the spacers based on performance and cost, and the short T-spacer design was optimal based on its performance and functionality. Results of the shear-wall loading simulations revealed that simulated walls with the continuous filament ties yielded factors of safety that were at least ten times greater than those without the ties. In the explosive attack simulation (100 psi), the simulated wall without the ties failed (minimum factor of safety was less than one), but the simulated wall with the ties yielded a minimum factor of safety greater than one. Simulations of the walls subject to lateral loads caused by 100 mph winds (0.2 psi) and seismic events with a peak ground acceleration of 1 ''g'' (0.66 psi) yielded no failures with or without the ties. Simulations of wall displacement during the seismic scenarios showed that the wall with the ties resulted in a maximum displacement that was 20% less than the wall without the ties.
Date: June 1, 2006
Creator: Quinones, Armando (Arquin Corporation, La Luz, NM); Bibeau, Tiffany A. & Ho, Clifford Kuofei
Partner: UNT Libraries Government Documents Department

Multifamily Individual Heating and Ventilation Systems, Lawrence, Massachusetts (Fact Sheet)

Description: The conversion of an older Massachusetts building into condominiums illustrates a safe, durable, and cost-effective solution for heating and ventilation systems that can potentially benefit millions of multifamily buildings. Merrimack Valley Habitat for Humanity (MVHfH) partnered with U.S. Department of Energy Building America team Building Science Corporation (BSC) to provide high performance affordable housing for 10 families in the retrofit of an existing mass masonry building (a former convent). The original ventilation design for the project was provided by a local engineer and consisted of a single large heat recovery ventilator (HRV) located in a mechanical room in the basement with a centralized duct system providing supply air to the main living space and exhausting stale air from the single bathroom in each apartment. This design was deemed to be far too costly to install and operate for several reasons: the large central HRV was oversized and the specified flows to each apartment were much higher than the ASHRAE 62.2 rate; an extensive system of ductwork, smoke and fire dampers, and duct chases were specified; ductwork required a significant area of dropped ceilings; and the system lacked individual ventilation control in the apartments
Date: November 1, 2013
Partner: UNT Libraries Government Documents Department