If your registered sale deed has a mention about the easement rights, you can enforce your rights to that extent alone and you cannot claim for any additional easement as a right.
Since you require this facility to construct your house on the vacant land alone, you have an option to request the adjacent land owner to permit you to ferry the construction material into your land and also to allow the JCB vehicle temporarily for the purpose of construction.
You cannot claim it as a right neither any case before a court of law including a suit for injunction to refrain the neighbor from blocking you to use his property shall be maintainable, in fact the court may not even entertain your lawsuit seeking this relief because you neither have any rights nor any interest over his property.
Thus you may have to restrict your usage to the existing pathway alone especially in the event of the neighbor not cooperating with you to accommodate your request and make an alternative arrangement to construct your house on your vacant land.