Source: https://tendernation.io/opportunities/01a13c86-641d-7329-9cd8-33f32ce01ac4/high-pressure-washing-for-radiological-decontamination-of-concrete-surfaces closed GB open procedure Suitable for SMEs # High Pressure Washing for Radiological Decontamination of Concrete Surfaces [Defra Network eTendering Portal](https://tendernation.io/buyers/defra-network-etendering-portal) Often single bidder Estimated value Not stated Published 17 Aug 2022 Deadline Closed 23 Sept 2022 ## Who can bid - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. - Buyer says suitable for VCSEs The buyer ticked “suitable for voluntary, community and social enterprises” on the notice. - Open procedure Anyone can submit a full tender; there is no shortlisting stage. [More contracts for small businesses and VCSEs](https://tendernation.io/opportunities/for-small-businesses) ## About this tender The Department for Environment, Food and Rural Affairs (Defra) is commissioning small-scale research to investigate the viability of high-pressure washing for decontaminating UK concrete building materials following a major radiation incident. Defra is the designated Lead Government Department in England for coordinating the recovery from Chemical, Biological, Radiological and Nuclear (CBRN) incidents in England. To that end, Defra facilitates UK access to decontamination capabilities for buildings, environment, and infrastructure following a CBRN incident. When not recovering from a CBRN event, Defra develops recovery policy and operational capability by working closely with cross government colleagues, academia, and industry. The aim of this project is to test the suitability of high-pressure washing procedures to decontaminate UK concrete surfaces contaminated with 85Sr, 137Cs, and 152Eu. This project consists of 2 stages. The objectives of stage 1 of this project are: - Source suitable concrete samples from the UK built environment and then contaminate with 85Sr, 137Cs, and 152Eu under laboratory conditions (Objective 1). - Measure radionuclide depth profiles after aging the contaminated samples for a maximum of 2 months. This aging period is considered representative of decontamination operations after a significant radiation incident (Objective 2). The objectives of stage 2 of this project are: - Determine the effect of three different water pressures (between 2,000 and 7,000 psi) on the radionuclide removal rates from contaminated concrete samples (Objective 3). - Examine the potential for high pressure washing to induce aesthetic and/or physical damage to the decontaminated materials by visual inspection and appropriate microscopy technique(s) (Objective 4). It is important to note that the duration of stage 1 of the project is 5.5 months. A 6-month extension to the project is available for stage 2, subject to satisfactory completion of stage 1. It is acceptable for Tenderers to submit a tender for stage 1 of the project only. Read full description ## CPV classification Research and development services and related consultancy services Source Contracts Finder (UK) [View official notice](https://www.contractsfinder.service.gov.uk/notice/03a89080-2e5c-496c-bce1-f93b337eaf97) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. 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