Abstract: An output circuit has: a first driver circuit configured to receive a voltage of an input terminal and output a first voltage to an output terminal; a first comparison circuit configured to compare a first reference voltage with a voltage of the output terminal; a second driver circuit configured to receive the voltage of the input terminal and output a second voltage to the output terminal and become an off state according to a comparison result of the first comparison circuit; a second comparison circuit configured to compare a second reference voltage different from the first reference voltage with the voltage of the output terminal; and a third driver circuit configured to receive the voltage of the input terminal and output a third voltage to the output terminal and become an off state according to a comparison result of the second comparison circuit.

Abstract: An output circuit has: a first driver circuit configured to receive a voltage of an input terminal and output a first voltage to an output terminal; a first comparison circuit configured to compare a first reference voltage with a voltage of the output terminal; a second driver circuit configured to receive the voltage of the input terminal and output a second voltage to the output terminal and become an off state according to a comparison result of the first comparison circuit; a second comparison circuit configured to compare a second reference voltage different from the first reference voltage with the voltage of the output terminal; and a third driver circuit configured to receive the voltage of the input terminal and output a third voltage to the output terminal and become an off state according to a comparison result of the second comparison circuit.

Abstract: An output circuit has: a first driver circuit configured to receive a voltage of an input terminal and output a first voltage to an output terminal; a first comparison circuit configured to compare a first reference voltage with a voltage of the output terminal; a second driver circuit configured to receive the voltage of the input terminal and output a second voltage to the output terminal and become an off state according to a comparison result of the first comparison circuit; a second comparison circuit configured to compare a second reference voltage different from the first reference voltage with the voltage of the output terminal; and a third driver circuit configured to receive the voltage of the input terminal and output a third voltage to the output terminal and become an off state according to a comparison result of the second comparison circuit.

Abstract: An output circuit has: a first driver circuit configured to receive a voltage of an input terminal and output a first voltage to an output terminal; a first comparison circuit configured to compare a first reference voltage with a voltage of the output terminal; a second driver circuit configured to receive the voltage of the input terminal and output a second voltage to the output terminal and become an off state according to a comparison result of the first comparison circuit; a second comparison circuit configured to compare a second reference voltage different from the first reference voltage with the voltage of the output terminal; and a third driver circuit configured to receive the voltage of the input terminal and output a third voltage to the output terminal and become an off state according to a comparison result of the second comparison circuit.

Abstract: Soil cement slurry is produced by mixing blast-furnace slag fine particles with a specified fineness and Portland cement at a specified ratio to prepare blast-furnace slag cement and using a specified amount of slurry composition for ground improvement including this blast-furnace slag cement with water and an admixture per 1 m3 of ground. The admixture contains specified amounts of a hardening accelerator, a defoamer and a fluidizer.

Abstract: Soil cement slurry is produced by mixing blast-furnace slag fine particles with a specified fineness and Portland cement at a specified ratio to prepare blast-furnace slag cement and using a specified amount of slurry composition for ground improvement including this blast-furnace slag cement with water and an admixture per 1 m3 of ground. The admixture contains specified amounts of a hardening accelerator, a defoamer and a fluidizer.

Abstract: Slurry composition for ground improvement is obtained from cement, water and an admixture. The slurry composition cement is of a kind prepared by using blast-furnace slag cement of a specified type as the cement at a water/blast-furnace slag cement mass ratio of 40-250% and contains the admixture in an amount of 0.1-5 mass parts for 100 mass parts of the blast-furnace slag cement. The blast-furnace slag cement of the specified type contains blast-furnace slag fine particles with fineness 3000-13000 cm2/g in an amount of 60-80 mass % and portland cement in an amount of 20-40 mass % for a total of 100 mass %.