WELCOME TO CONSTRUCTIVE EVALUATION

In an effort to try and make this a yearly tradition, we’re back again with a review of Constructive Evaluation’s year. Around the World? Those of you who read our review last year, may remember (but probably won’t) that our...

When it comes to foundation investigations and ground sampling, the are many methods Constructive Evaluation can employ to achieve desired results. One such technique is cable percussion drilling. This efficient practice is widely used in the construction industry for its...

The Importance of Geotechnical Investigations in Construction Construction projects of any scale require a strong foundation to ensure the safety and structural integrity of the built environment. Geotechnical investigations play a crucial role in the early stages of construction, helping...

In the world of construction, certain materials come with inherent risks that must be carefully evaluated and managed. One such material, RAAC (Reinforced Autoclaved Aerated Concrete), has gained recent notoriety due to its potential dangers. In this blog post, we...

In the world of construction, ensuring the longevity and durability of structures is of utmost importance. One crucial technique that has gained significant recognition in recent years is half cell testing. This non-destructive testing method allows construction professionals to assess...

Trial pits (sometimes known as foundation pits, trial holes & trial trenches) are Constructive Evaluation’s most common geotechnical works. But what exactly are they and why do we use them? What are Trial Pits? Put simply, Trial pits are exploratory...

This year marks Constructive Evaluation’s 30th anniversary. To celebrate the occasion, we thought we’d share with you the history of the company, penned by our late founder, Paul Moore. CE was borne out of the recession of 1993, I had...

In a change of pace from our usual blogs on the services we offer, this month we thought we’d review Constructive Evaluation’s year. It’s been a bumper year for us with enquiries and works exceeding pre-pandemic levels for the first...

With Halloween upon us, we thought now would be the perfect time to look back at one of our more macabre projects. In late 2016, a council in London instructed us to undertake investigation works to 19 burial vaults in...

Despite often being so small, fixings are probably the most important aspect of any structure. From the smallest screw to the biggest bolt, fixings are the glue that holds a structure together. It’s very easy to overlook the extreme loads...

Our geotechnical team have been hard at work in London this week carrying out a plate load test. A plate load test (sometimes known as a plate bearing test) is an in-situ test performed to assess the ground’s ability to...

If, like us, you work in the construction industry, you’ll have heard countless times to be wary of asbestos. We won’t go into the dangers of asbestos here because that’s a blog for another time. You’ve also probably heard all...

Window and windowless sampling are methods of soil extraction that retain the various horizons of the soil, so that they may be analysed, measured and profiled. To achieve this steel tubes (typically 1 metre in length) are pounded into the...

Structural investigation forms a major part our building surveying workload. The determination of how a structure was built is the prime purpose of structural investigation, with defects analysis secondary. With plots for new builds becoming ever more expensive, developers are...

This week we’re going to be looking back at a job we undertook in 2019. This particular job was interesting because it highlighted the challenges of working in old buildings. Constructive Evaluation was instructed to assess the ground conditions underlying...

Electromagnetic and GPR concrete scanning has become the preferred method of non-destructive reinforcement determination and inspection throughout the construction industry. To maintain structural and seismic integrity, engineers are frequently requesting that embedded reinforcement be avoided when cutting or coring through...

Constructive Evaluation was commissioned back in February to carry out a Site Investigation to an island situated on the River Thames. The purpose of this investigation was to provide detailed lithology and soil strength parameters for the substrata at two...

In August 2016 Constructive Evaluation Limited were instructed by Hockley and Dawson on behalf of their client, Historic Royal Palaces, to undertake a testing regime to the proposed Polyamide material to be used for the replacement of 72 dragons that...

With March upon us, now is the perfect time to start thinking about percolation tests. Percolation tests are mandatory in gaining permission for the installation of a soakaway or other drainage systems as they determine the permeability and drainage capacity...

This week, we are rolling back the clock to a job we accepted in the of summer 2012. Our client wanted us to undertake Parallel seismic testing at Wembley Central railway station. The purpose of the work was to provide...

Constructive Evaluation were recently commissioned to undertake an unusual Ground Investigation project – providing design parameters for the construction of a new shipping jetty, with an approach ramp adjacent to an existing jetty over the River Thames in Northfleet, Kent....

The Constructive Evaluation surveying team recently attended a site in Worthing, West Sussex to carry out a delamination survey to the screed of a warehouse building. Delamination surveys are nothing new for us, having undertaken numerous tap hammer & visual...

Our surveyors, Alex and Liam, are currently involved with works at a London underground station on the District Line to undertake a number of tasks under two platforms. These works include defect inspections & tap hammer surveys. However, the primary...

Constructive Evaluation provide varying degrees of structural investigation services to a wide array of structures. The purpose of these investigations can be to determine the root & cause of defects, & the monitoring of said defects. However, structural investigation is...

Over the years our experienced confined access team has undertaken many projects, surveying everything from culverts, ferry pontoons, to confined spaces asbestos surveys which have taken our company the length and breadth of the UK. Past projects have included: Due...

Constructive Evaluation were commissioned by a local authority to carry out a materials assessment survey of a city centre multi-storey car park in Hampshire. The works were overseen by structural engineers from the local council, all information being relayed on...

Constructive Evaluation is pleased to announce that we are participating in the Kickstart scheme. The Kickstart programme is a project funded by the Department for Work and Pensions which initially provides six-month job placements offering on the job training opportunities...