In new construction, cracks can appear for variety of reasons: curing, temperature deviation, pressure from adjacent conditions, or settlement. This presentation will outline various types of cracking, how to plan to avoid them, and how to address them after concrete has been placed.
Due to improper design or implementation sometimes Part of the New projects are re-executed or repaired. Islamabad - Rawalpindi BRTS (Bus Rapid transit System) Consisted of 20 Stations Covering around 23 km path connecting twin cities. Each station Roof Consisted of ACP Sheets Fixed on Aluminum Frame with Steel supports. The joints of ACP sheets were filled by Silicon but improper materiel and workmanship caused leakage in joints. Total length of joints was over 400,000 RFT. Leakage was invariably from almost every area.
Historic 19th and 20th century buildings are currently facing the necessity of meeting contemporary needs such as adaptive re-use, energy efficiency, stability, and durability. The characteristics of architecture of these periods (i.e., material, design, details, maintenance, and functionality) increasingly make it challenging to maintain authenticity while incorporating new uses. Various strategies of technical interventions can be employed to achieve good results. This presentation will cover the case study of abandoned historic hospital pavilions from the early 20th century which are being converted into a high-end residential complex. The buildings face multiple challenges related to adaptive re-use, as they will be restored and connected with new infills and a glass connector and capped with re-creation of the historic cornices.
This webinar will review issues that should be addressed when preparing a specification for concrete repair. ICRI developed an editable specification titled “Guide Specification for Structural Concrete Repairs” that can be used by design professionals. The webinar reviews the specification and discusses decisions that should be considered when developing a concrete repair specification.
ICRI in-person conventions consist of numerous networking opportunities. In many cases, we catch up with old friends who we have not seen in a while, and get to know new friends. Great stories abound, including how ICRI members came to be involved in the organization. Tune in to hear some of these stories in a relaxed, “sitting-at-the-bar” exchange among notable ICRI leaders.
Technology is not limited to innovative materials or equipment on a jobsite. Digital technology is changing how teams operate and is dramatically increasing efficiency and effectiveness. Cloud-based project management software allows key stakeholders to consolidate project data on to one mobile platform for easy collaboration. The entire project team, from general contractors, specialty contractors, owners, architects, engineers, conservators, and others can exchange data and documents with the tap of a screen. Communication between the field and the office is streamlined where everyone has access to real-time project details. This helps avoid duplicate entry errors and rework because teams built from an outdated drawing. In addition to drawings and details, project management software brings contracts, submittals, RFIs, billings, safety reporting, meeting minutes, photos, and financial reporting into one platform.
Shotcrete has been used widely for rehabilitation and retrofit of concrete structures. More and more large infrastructures, in particular, in the hydro power industry, is using shotcrete for major rehabilitation and retrofit. Recently, the US Army Corps of Engineers has been engaged in structural modifications to reinforced concrete draft tube exits from the turbines in the Ice Harbor Lock and Dam located on the Snake River, Washington. This presentation details the structural modification to the draft tube which was successfully completed using wet-mix shotcrete.
Since the invention and introduction of Portland cement-based, self-leveling underlayments in the U.S. in 1978, sub-floor preparation technologies, means and methods have continuously evolved. This evolution has been driven by dynamic market forces, including more manufacturers, a larger and more experienced installer base, increased adoption rates with a wider range of applications, ever-increasing project sizes and complexity, new flooring structures with more demanding requirements, the ability to handle high moisture levels with less surface preparation and fast track construction.
Presentation will discuss Vision 2020 (Development, Successes and Challenges) as well as items which still need to be completed. This portion of the presentation will be followed by an overview of the presenter's perspective on the future needs for the concrete repair industry. All attendees will be invited to participate in a workshop to develop a complete list of industry needs (consensus if possible).