Building material strength detection device

The utility model relates to the technical field of strength detection, in particular to a building material strength detection device which comprises an adjusting device, sliding plates are arranged on the two sides of the upper end of the adjusting device in a sliding mode, an upper clamping plate is fixedly connected to the upper ends of the sliding plates, and first sliding grooves are formed in the inner sides of the sliding plates. A lower clamping plate is slidably connected to the interior of the first sliding groove in a limiting mode, a laser spotlight is fixedly connected to one side of the lower clamping plate and one side of the upper clamping plate, a rotating threaded shaft is rotatably connected to the interior of the first sliding groove and is in threaded connection with the lower clamping plate, and a downward pressing detection device is arranged on one side of the upper end of the adjusting device. By observing whether laser rays emitted by the laser spotlights arranged on one side of the