Normal Floor Level Survey Results

The paper includes a review of the historical and empirical basis for an elevation survey or levelness approach to foundation performance.

Normal floor level survey results. Engineers may use a water level manometer but often use sophisticated laser levels or transits to do a level floor survey. The results below show that the pro level was both as accurate but faster as the total station. The home was then surveyed with the pro level manometer. The pro level manometer versus a 60 000 total station.

At tennyson foundation repair we feel that the first step is to take a look see at the foundation of your home and perform a visual inspection. Using the testing procedures outlined in astm e 1155 floor surfaces covered with a cementitious slu have rendered f numbers in the mid to upper 80 s. Sometimes the next step is to advise the homeowner to have a floor level survey performed on their home. Minimum required flatness levelness 30 day result using slu.

Civil engineers and companies that specialize in oce surveys and documentation of floor levelness and elevations are often called upon when serious problems develop or if there is litigation. See my previous post for a more detailed explanation of the levels of foundation investigations. Floor level manometer survey do you need a floor level survey. The following is one example of field test results for a floor covered with custom s high performance slu.

Floor surveys are highly beneficial in diagnosing foundation movement. Elevation surveys in assessing the performance of a slab on ground foundation. A 2d plan of the property is then created which allows the floor level readings to be recorded and contour lines to be drawn accurately. When the senior forensic engineers at mfs engineering carry out a floor level survey they use the zip levelpro 2000 tool to measure the footing movements which boasts an accuracy of 2mm.

On this site i did find a definition of level as being no more that a 1 50 slope or 2. It is the reason that in both the foundation performance association and texas asce require a proper floor elevation as part of a level b investigation. Searching the web looking for information on what constitutes a level floor is frustrating because in most contexts level is being interpreted as ground level mezzanine level etc. But in the majority of cases the said slab will not be flat smooth and may prove to be far from being fit for the clients use.

Since the paper critically examines the use of elevation surveys there is an emphasis on the limitations of this approach. Floor flatness surveys an open area of floor slab or a wide racking aisle may look flat smooth and perfectly serviceable when observed by the untrained eye.