Such………that .  It is a correlative conjunction.  It is used to give reason for a particular result.  It can be used to combine two sentences.

Examples :

• It was a very hot afternoon.  We stopped playing.
• It was such a hot afternoon that we stopped playing. (combined)
• The boy asked a very foolish question.  Everyone laughed at him.
• The boy asked such a foolish question that everyone laughed at him. (combined)
• It was a very interesting story.  I read it in one sitting.
• It was a such an interesting story that I read it in one sitting.( combined)
• V.R.Dilipkumar is a great musician.  He went all the way to London to take part in the music festival.
• V.R.Dilipkumar is such a great musician that he went all the way to London to take part in the music festival.(combined)
• He is a very poor boy.  He cannot afford college education.
• He is such a poor boy that he cannot afford college education.(combined)
• A car is a costly thing for him.  He cannot afford to buy a car with his meagre savings.
• A car is such a costly thing for him that he cannot afford to buy one with his meagre savings.(combined)