std::bind not able to call the class member function: C++

I have to implement A valve Open function (for specified duration). I am using boost::asio::deadline_timer

My class member function to open valve is:

bool Valves::valveOpen(ValveType type)
    {
        switch (type)
        {
        case eVentValve:
            tblMap_.digitalInput[eVentValveK1].setBit();
            if (tblMap_.digitalOutput[eOutK1VentValve].getBit())
            {
                isVentOpen_ = true;
            }
            return isVentOpen_;

        case eVacuumPumpValve:

....
....
}

Class member function to close the valve is:

bool Valves::valveClose(ValveType type)
{
    switch (type)
    {
    case eVentValve:
        tblMap_.digitalInput[eVentValveK1].clearBit();
        if (!tblMap_.digitalOutput[eOutK1VentValve].getBit())
        {
            isVentOpen_ = false;
        }
        return !isVentOpen_;

    case eVacuumPumpValve:
....
....
}

I am trying to achieve the timer action as below

bool Valves::valveTimedOpen(ValveType type, int sec)
{
    boost::asio::io_service io;
    switch (type)
    {
    case eVentValve:
    {
                    std::bind(&Valves::valveOpen, this, type); //Here
                    boost::asio::deadline_timer t(io, boost::posix_time::seconds(sec));
                    t.async_wait(std::bind(&Valves::valveClose, this, type));
                    boost::thread th(boost::bind(&boost::asio::io_service::run, &io));
                    return true;
    }

    case eVacuumPumpValve:

.....
.....
}

The code hits the line Here i.e.

std::bind(&Valves::valveOpen, this, type); but it does not go to bool Valves::valveOpen(ValveType type) function.

Can someone let me know the issue with this code?